diff --git a/Multilingual.php b/Multilingual.php
index 6e0c212..41c839f 100644
--- a/Multilingual.php
+++ b/Multilingual.php
@@ -1,945 +1,932 @@
-<?php
-namespace CMH\Multilingual;
-
-use ExternalModules\AbstractExternalModule;
-use ExternalModules\ExternalModules;
-use \Piping as Piping;
-use REDCap;
-
-class Multilingual extends AbstractExternalModule
-{
-	public $translate_answer_field_types = [
-		"select",
-		"radio",
-		"checkbox",
-		"yesno",
-		"truefalse",
-		"slider"
-	];
-	
-	function redcap_survey_page($project_id, $record, $instrument, $event_id, $group_id, $survey_hash, $response_id, $repeat_instance){
-		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
-		
-		// add multilingual_survey.js after making text replacements
-		$redcap_survey_javascript = file_get_contents($this->getModulePath() . 'js/multilingual_survey.js');
-		$redcap_survey_javascript = str_replace('REDCAP_PDF_URL', ($this->getProjectSetting('multilingual-econsent', $project_id) ? $this->getUrl("multilingualPDF.php", true, ($api_endpoint == true ? true : false)) : 'false') . '&id=' . $record . '&form=' . $instrument . '&event_id=' . $event_id . '&instance=' . $repeat_instance, $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('REDCAP_INSTRUMENT_NAME', $instrument, $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('MULTILINGUAL_RECORD_ID', $record, $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('MULTILINGUAL_LANGUAGE_SELECTED_URL', $this->getUrl('languageSelected.php'), $redcap_survey_javascript);
-		$redcap_survey_javascript = str_replace('MULTILINGUAL_SURVEY_EVENT', $event_id, $redcap_survey_javascript);
-		
-		// see if pdf translation is configured or not -- set variable in multilingual_survey.js
-		if ($this->getProjectSetting("translate_pdfs_instruments")) {
-			$redcap_survey_javascript = str_replace('MULTILINGUAL_PDF_TRANSLATION_ENABLED', 'true', $redcap_survey_javascript);
-		} else {
-			$redcap_survey_javascript = str_replace('MULTILINGUAL_PDF_TRANSLATION_ENABLED', 'false', $redcap_survey_javascript);
-		}
-		
-		echo "<script type='text/javascript'>$redcap_survey_javascript</script>"; 
-		echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css', true, $api_endpoint == true) . '">';
-	}
-
-	function redcap_survey_complete($project_id, $record, $instrument, $event_id, $group_id = NULL, $survey_hash, $response_id = NULL, $repeat_instance){
-		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
-		// Update and add multilingual_survey_complete
-		echo '<script type="text/javascript">' . str_replace('REDCAP_PDF_URL', ($this->getProjectSetting('multilingual-econsent', $project_id) ? $this->getUrl("multilingualPDF.php", true, ($api_endpoint == true ? true : false)) : 'false') . '&id=' . $record . '&form=' . $instrument . '&event_id=' . $event_id . '&instance=' . $repeat_instance , str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), file_get_contents($this->getModulePath() . 'js/multilingual_survey_complete.js')))) . '</script>';
-	}
-
-	function redcap_data_entry_form($project_id, $record, $instrument){
-		echo '<script type="text/javascript">' . str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual.js')))) . '</script>';
-		echo '<link rel="stylesheet" type="text/css" href="' . $this->getUrl('css/multilingual.css') . '">';
-	}
-	
-	function redcap_pdf($project_id, $metadata, $data, $instrument, $record, $event_id, $instance) {
-		// delay execution of this module to allow multi-consent-signature module to do it's thing
-		if ($this->delayModuleExecution()) {
-			return;
-		}
-		
-		// get which languages were selected for which instruments by the user as they were taking surveys
-		$user_langs = $this->getUserSelectedLanguages($record);
-		
-		if (empty($user_langs)) {
-			// user never selected a lang, do no translations
-			return array('metadata'=>$metadata, 'data'=>$data);
-		}
-		
-		// log to project event table
-		$action_description = "Translating Generated PDF";
-		$changes_made = "The Multilingual module will translate field labels (for each instrument) based on language selections the user made in survey(s).";
-		\REDCap::logEvent($action_description, $changes_made, null, $record_id, $event_id);
-		
-		// translate metadata using user selected languages
-		global $Proj;
-		$translated_metadata = $this->translatePDF($metadata, $user_langs);
-		
-		return array('metadata'=>$translated_metadata, 'data'=>$data);
-	}
-
-	function redcap_every_page_top($project_id){
-		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
-		$at_survey_settings = strpos($_SERVER['REQUEST_URI'], 'Surveys/edit_info.php') !== false || strpos($_SERVER['REQUEST_URI'], 'Surveys/create_survey.php') !== false;
-		
-		//$user_rights = REDCap::getUserRights();
-		//echo json_encode($user_rights);
-		
-		if(strpos($_SERVER['REQUEST_URI'], 'online_designer.php') !== false && isset($_GET['page'])){
-			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
-			echo '<script type="text/javascript">' . str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_setup.js'))) . '</script>';
-		}
-		elseif(strpos($_SERVER['REQUEST_URI'], 'DataExport/index.php') !== false){
-			echo '<script type="text/javascript">' . str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_export.js'))) . '</script>';
-		}
-		elseif($_GET['__return'] == 1 or (isset($_GET['s']) && !isset($_GET['__page__']))){
-			$instrument = $_GET['page'];
-			echo '<script type="text/javascript">' . 
-			str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, 
-			str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), 
-			str_replace('REDCAP_INSTRUMENT_NAME', $instrument, 
-			str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), 
-			file_get_contents($this->getModulePath() . 'js/multilingual_survey_return.js'))))) . '</script>';
-			
-			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css', true, ($api_endpoint == true ? true : false)) . '">';
-		}
-		elseif(strpos($_SERVER['REQUEST_URI'], 'DataEntry/index.php') !== false || strpos($_SERVER['REQUEST_URI'], 'DataEntry/record_home.php') !== false){
-			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
-			echo '<script type="text/javascript">' . str_replace('PDF_URL', $this->getUrl("multilingualPDF.php", true), str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_pdf.js'))))) . '</script>';
-		}
-		elseif($at_survey_settings && isset($_GET['page'])){
-			$index_url = $this->getUrl("index.php", true, ($api_endpoint == true ? true : false));
-			$language_var = $this->languageVariable($project_id);
-			$stylesheet = '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
-			$ml_survey_settings_js = '<script type="text/javascript">' . file_get_contents($this->getUrl('js/multilingual_survey_settings.js')) . '</script>';
-			$ml_survey_settings_js = str_replace('REDCAP_AJAX_URL', $index_url, $ml_survey_settings_js);
-			$ml_survey_settings_js = str_replace('REDCAP_LANGUAGE_VARIABLE', $language_var, $ml_survey_settings_js);
-			
-			echo $stylesheet;
-			echo $ml_survey_settings_js;
-		}
-	}
-
-	/**
-	 * @param $projectId
-	 * @return string
-	 */
-	private function getMetaDataTableName($projectId){
-		global $conn;
-		if($this->getProjectSetting('use-drafted-changes', $projectId)){
-			$query = "select draft_mode from redcap_projects where project_id = " . mysqli_real_escape_string($conn, $data['project_id']);
-			if($result = mysqli_query($conn, $query)){
-				if($row = mysqli_fetch_array($result)){
-					$draftMode = $row["draft_mode"];
-					return "redcap_metadata".($draftMode == 1?"_temp":"");
-				}else{
-					error_log("Multilingual: no row to determine draft_mode");
-				}
-				mysqli_free_result($result);
-			}else{
-				error_log("Multilingual: no result to determine draft_mode");
-			}
-		}
-		return "redcap_metadata";
-	}
-	
-	public function languageVariable($project_id){
-		$langVar = $this->getProjectSetting('languages_variable', $project_id);
-		if($langVar == ''){
-			$langVar = 'languages';
-		}
-		return $langVar;
-	}
-	
-	public function getSurveySettings($data) {
-		$instruments = $this->getProjectSetting('instruments');
-		
-		if (!empty($instruments)) {
-			$instruments = json_decode($instruments);
-			$name = htmlspecialchars($data['instrument']);
-			$instrument = $instruments->$name;
-		} else {
-			$instruments = new \stdClass();
-		}
-		
-		header('Content-Type: application/json');
-		echo json_encode($instrument);
-	}
-	
-	public function saveSurveySettings($all_data) {
-		$instruments = $this->getProjectSetting('instruments');
-		if (empty($instruments)) {
-			$instruments = new \stdClass();
-		} else {
-			$instruments = json_decode($instruments);
-		}
-		
-		foreach ($all_data as $data) {
-			$instrument = htmlspecialchars($data['instrument']);
-			$lang = htmlspecialchars($data['language']);
-			if (empty($instruments->$instrument)) {
-				$instruments->$instrument = new \stdClass();
-			}
-			if (empty($instruments->$instrument->$lang)) {
-				$instruments->$instrument->$lang = new \stdClass();
-			}
-			foreach ($data['collections'] as $coll_name => $coll) {
-				$instruments->$instrument->$lang->$coll_name = new \stdClass();
-				
-				// add each setting to collection after encoding HTML
-				foreach ($coll as $sname => $setting) {
-					$instruments->$instrument->$lang->$coll_name->$sname = htmlspecialchars($setting);
-				}
-			}
-		}
-		
-		$this->setProjectSetting('instruments', json_encode($instruments));
-	}
-
-	public function getSettings($data){
-		$response = $this->getProjectSettings($data['project_id']);
-		
-		foreach($response AS $key => $values){
-			if($key == 'button-width'){
-				if(substr($response[$key], -2) != 'px'){
-					$response[$key] = '100px';
-				}
-				elseif(intval(str_replace('px', '', $response[$key])) < 1){
-					$response[$key] = '100px';
-				}
-			}
-			elseif($key == 'languages_variable' && $response[$key] == null){
-				$response[$key] = 'languages';
-			}
-		}
-
-		header('Content-Type: application/json');
-		echo json_encode($response);
-	}
-
-	public function getAnswers($data){
-		global $conn;
-
-		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
-		$data['field_name'] = mysqli_real_escape_string($conn, $data['field_name']);
-
-		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
-
-		if($data['matrix'] == 1){
-			$query = "SELECT element_enum, element_type, element_validation_type, element_validation_min, element_validation_max FROM $metaDataTableName
-				WHERE project_id = " . intval($data['project_id']) . "
-				AND grid_name LIKE '" . $data['field_name'] . "'
-				LIMIT 1";
-		}
-		else{
-			$query = "SELECT element_enum, element_type, element_validation_type FROM $metaDataTableName
-				WHERE project_id = " . intval($data['project_id']) . "
-				AND field_name LIKE '" . $data['field_name'] . "'";
-		}
-		$result = mysqli_query($conn, $query);
-
-		$row = mysqli_fetch_array($result);
-
-		if(strpos(' \n ', $row['element_enum']) !== false){
-			$tmp = explode(' \n ', $row['element_enum']);
-		}
-		else{
-			$tmp = explode('\n', $row['element_enum']);
-		}
-
-		foreach($tmp AS $key => $value){
-			$tmp2 = explode(',', $value);
-			$response[trim($tmp2[0])] = trim($tmp2[1]);
-		}
-
-		if($row['element_type'] == 'text' && (strpos($row['element_validation_type'], 'date') !== false || strpos($row['element_validation_type'], 'time') !== false)){
-			$response = null;
-			$response['0'] = 'Answer';
-		}
-		elseif($row['element_type'] == 'file' && strpos($row['element_validation_type'], 'signature') !== false){
-			$response = null;
-			$response['0'] = 'Answer';
-		}
-		elseif($row['element_type'] == 'file' && $row['element_validation_type'] == null){
-			$response = null;
-			$response['0'] = 'Answer';
-		}
-		elseif($row['element_type'] == 'calc'){
-			$response = null;
-			$response[""] = "";
-		}
-		elseif($row['element_type'] == 'yesno'){
-			$response = null;
-			$response['0'] = "No";
-			$response['1'] = "Yes";
-		}
-		elseif($row['element_type'] == 'truefalse'){
-			$response = null;
-			$response['0'] = "False";
-			$response['1'] = "True";
-		}
-		elseif($row['element_type'] == 'slider'){
-			$response = explode('|', array_keys($response)[0]);
-			$response = array_map('trim',$response);
-			if (count($response) == 3){$keys = array('0', '50', '100');}
-			elseif(count($response) == 2){$keys = array('0', '100');}
-			elseif(count($response) == 1){$keys = array('0');}
-			else{$keys = array();}
-			$response = array_combine($keys, $response);
-		}
-
-		header('Content-Type: application/json');
-		echo json_encode($response);
-	}
-
-	public function getTranslations($data, $projectSettings){
-		global $conn;
-		$layout_set = 0;
-
-		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
-		$data['page'] = mysqli_real_escape_string($conn, $data['page']);
-
-		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
-
-		$query = "SELECT field_name, element_type, misc, grid_name, element_validation_type, element_validation_min, element_validation_max, element_label FROM $metaDataTableName
-			WHERE project_id = " . intval($data['project_id']) 
-				. ($data['page'] !='' ? " AND (form_name LIKE '" . $data['page'] . "' OR field_name LIKE 'survey_text_" . $data['page'] . "')" : '');
-		$result = mysqli_query($conn, $query);
-
-		while($row = mysqli_fetch_array($result)){
-			//default questions
-			$response['defaults'][$row['field_name']] = strip_tags($row['element_label']. '<br>');
-			
-			//$misc = explode("@", $row['misc']);
-			$misc = str_getcsv($row['misc'], '@');
-			//$response['test'] = $misc;
-
-			$response['all'][$row['field_name']] = $misc;
-			foreach($misc AS $key => $value){
-				//replace ___ with @
-				$value = str_replace('___', '@', $value);
-				
-				//questions
-				if(strpos($value, 'p1000lang') !== false){
-					$value = trim(str_replace('p1000lang', '', $value));
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $data['lang']){
-							$response['questions'][$row['field_name']]['text'] = Piping::replaceVariablesInLabel($trans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
-							if(strpos($row['element_validation_type'], 'date') !== false){
-								$response['questions'][$row['field_name']]['type'] = 'date';
-							}
-							elseif(strpos($row['element_validation_type'], 'time') !== false){
-								$response['questions'][$row['field_name']]['type'] = 'time';
-							}
-							else{
-								$response['questions'][$row['field_name']]['type'] = $row['element_type'];
-							}
-							$response['questions'][$row['field_name']]['matrix'] = $row['grid_name'];
-
-							//layout
-							if($layout_set == 0){
-								if(\CMH\Multilingual\Multilingual::is_arabic($trans) === true){
-									$response['layout'] = 'rtl';
-								}
-								else{
-									$response['layout'] = 'ltr';
-								}
-								$layout_set = 1;
-							}
-						}
-					}
-				}
-
-				//answers
-				elseif(strpos($value, 'p1000answers') !== false){
-					$value = trim(str_replace('p1000answers', '', $value));
-
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $data['lang']){
-							foreach($trans AS $key3 => $newTrans){
-								if($row['element_type'] == 'select'){
-									$trans[$key3] = strip_tags(Piping::replaceVariablesInLabel($newTrans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']), '<br>');
-								}
-								else{
-									$trans[$key3] = Piping::replaceVariablesInLabel($newTrans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
-								}
-							}
-
-							$response['answers'][$row['field_name']]['text'] = $trans;
-							if(strpos($row['element_validation_type'], 'date') !== false){
-								$response['answers'][$row['field_name']]['type'] = 'date';
-							}
-							elseif(strpos($row['element_validation_type'], 'time') !== false){
-								$response['answers'][$row['field_name']]['type'] = 'time';
-							}
-							elseif(strpos($row['element_validation_type'], 'signature') !== false){
-								$response['answers'][$row['field_name']]['type'] = 'signature';
-							}
-							else{
-								$response['answers'][$row['field_name']]['type'] = $row['element_type'];
-							}
-							$response['answers'][$row['field_name']]['matrix'] = $row['grid_name'];
-						}
-					}
-				}
-				//errors
-				elseif(strpos($value, 'p1000errors') !== false){
-					$value = trim(str_replace('p1000errors', '', $value));
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $data['lang']){
-							$response['errors'][$row['field_name']]['text'] = $trans;
-							if(strpos($row['element_validation_type'], 'date') !== false){
-								$response['errors'][$row['field_name']]['type'] = 'date';
-							}
-							else{
-								$response['errors'][$row['field_name']]['type'] = $row['element_type'];
-							}
-							$response['errors'][$row['field_name']]['matrix'] = $row['grid_name'];
-						}
-					}
-				}
-				//field notes
-				elseif(strpos($value, 'p1000notes') !== false){
-					$value = str_replace('p1000notes', '', $value);
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $data['lang']){
-							$response['notes'][$row['field_name']]['text'] = Piping::replaceVariablesInLabel($trans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
-						}
-					}
-				}
-				//survey tranlations
-				elseif(strpos($value, 'p1000surveytext') !== false){
-					$value = trim(str_replace('p1000surveytext', '', $value));
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $data['lang']){
-							foreach($trans AS $survey_id => $survey_text){
-								$response['surveytext'][$survey_id] = $survey_text;
-							}
-						}
-					}
-				}
-			}
-
-			// if error message is not set
-			if(!isset($response['errors'][$row['field_name']])){
-				// if it is a text field with validation
-				if($row['element_type'] == 'text' && !empty($row['element_validation_type'])){
-
-					// Make array of error messages from project settings if not already made
-					if (!isset($defaultError)){
-						// make array of default error prompts
-						$defaultError = array();
-						$defaultError = array_fill_keys($projectSettings['validation'], NULL);
-
-						foreach($projectSettings['validation'] AS $key => $valid_type){
-							$defaultError[$valid_type] = array_combine($projectSettings['lang'][$key], $projectSettings['error'][$key]);
-						}
-					}
-
-					// If the text field's validation matches with any defined default error messages, use the default error messages
-					if (array_key_exists($row['element_validation_type'], $defaultError)){
-						if (array_key_exists($data['lang'], $defaultError[$row['element_validation_type']])){
-
-							// Check if the variable contains "[validation_range]", if so, pipe it with the actual range.
-							if (strpos($defaultError[$row['element_validation_type']][$data['lang']], "[validation_range]") !== false){
-
-								if (empty($row['element_validation_min']) && empty($row['element_validation_max'])){
-									$validationRange = '';
-								} else {
-									$validationRange = '('.$row['element_validation_min'].' - '.$row['element_validation_max'].')';
-								}
-
-								$response['errors'][$row['field_name']]['text'] = str_replace("[validation_range]", $validationRange, $defaultError[$row['element_validation_type']][$data['lang']]);
-							} else {
-								$response['errors'][$row['field_name']]['text'] = $defaultError[$row['element_validation_type']][$data['lang']];
-							}
-						}
-					}
-				}
-			}
-		}
-		
-		// override
-		$instruments = $this->getProjectSetting('instruments');
-		if (!empty($instruments)) {
-			$instruments = json_decode($instruments);
-			$form_name = $data['page'];
-			$this_lang = $data['lang'];
-			$simple_settings = $instruments->$form_name->$this_lang;
-			if (!empty($simple_settings)) {
-				$general_settings = $simple_settings->survey_settings;
-				if (!empty($general_settings)) {
-					if (!empty($general_settings->title) || $general_settings->title == "")
-						$response['surveytext']['surveytitle'] = html_entity_decode($general_settings->title);
-					if (!empty($general_settings->instructions) || $general_settings->instructions == "")
-						$response['surveytext']['surveyinstructions'] = html_entity_decode($general_settings->instructions);
-					if (!empty($general_settings->acknowledgement) || $general_settings->acknowledgement == "")
-						$response['surveytext']['surveyacknowledgment'] = html_entity_decode($general_settings->acknowledgement);
-				}
-			}
-		}
-		
-		//update language field
-		$response['exist'] = $this->updateLangVar($data);
-		$response['table'] = $metaDataTableName;
-
-		header('Content-Type: application/json');
-		echo json_encode($response);
-	}
-	
-	public function getRecordVar($data){
-		global $conn;
-
-		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
-
-		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
-		
-		$query = "SELECT field_name FROM $metaDataTableName where project_id = " . intval($data['project_id']) . " ORDER BY field_order LIMIT 1";
-		$result = mysqli_query($conn, $query);
-		$row = mysqli_fetch_array($result);
-		
-		return $row['field_name'];
-	}
-	
-	public function getSavedLang($data){
-		if($data['record_id'] != ''){
-			$langVar = $this->getProjectSetting('languages_variable', $data['project_id']);
-			$tmp = json_decode(REDCap::getData($data['project_id'], 'json', array($data['record_id']), array($langVar)),true);
-			if(!empty($tmp)){
-				header('Content-Type: application/json');
-				echo json_encode($tmp[0][$langVar]);
-			}
-			else{
-				return null;
-			}
-		}
-		else{
-			return null;
-		}
-		
-	}
-	
-	public function updateLangVar($data){
-		if($data['record_id'] != ''){
-			$exist = json_decode(\REDCap::getData($data['project_id'], 'json', $data['record_id']), true);
-			if(!empty($exist)){
-				$recordVar = $this->getRecordVar($data);
-				$langVar = $this->getProjectSetting('languages_variable', $data['project_id']);
-				
-				$t = array($recordVar => $data['record_id'], ($langVar != null ? $langVar : 'languages') => $data['lang_id'], 'redcap_event_name' => $this->getEventName($data['event_id']));
-				$json_data = json_encode(array($t));
-				$tmp = \REDCap::saveData($data['project_id'], 'json', $json_data, 'normal');
-
-				return $tmp;
-			}
-		}
-	}
-	
-	public function getEventName($event_id){
-		global $conn;
-		
-		$query = "SELECT descrip, arm_id FROM redcap_events_metadata WHERE event_id = " . intval($event_id);
-		$result = mysqli_query($conn, $query);
-		$row = mysqli_fetch_array($result); 
-		
-		$event_name = strtolower(str_replace(" ", "_", $row['descrip']));
-		
-		$query = "SELECT arm_name FROM redcap_events_arms WHERE arm_id = " . intval($row['arm_id']);
-		$result = mysqli_query($conn, $query);
-		$row = mysqli_fetch_array($result); 
-		
-		$event_name .= '_' . strtolower(str_replace(" ", "_", $row['arm_name']));
-		
-		return $event_name;
-	}
-
-	//copied from php.net
-	public function uniord($u) {
-		// i just copied this function fron the php.net comments, but it should work fine!
-		$k = mb_convert_encoding($u, 'UCS-2LE', 'UTF-8');
-		$k1 = ord(substr($k, 0, 1));
-		$k2 = ord(substr($k, 1, 1));
-		return $k2 * 256 + $k1;
-	}
-	//copied from stackoverflow
-	public function is_arabic($str) {
-		if(mb_detect_encoding($str) !== 'UTF-8') {
-			$str = mb_convert_encoding($str,mb_detect_encoding($str),'UTF-8');
-		}
-
-		/*
-		$str = str_split($str); <- this function is not mb safe, it splits by bytes, not characters. we cannot use it
-		$str = preg_split('//u',$str); <- this function woulrd probably work fine but there was a bug reported in some php version so it pslits by bytes and not chars as well
-		*/
-		preg_match_all('/.|\n/u', $str, $matches);
-		$chars = $matches[0];
-		$arabic_count = 0;
-		$latin_count = 0;
-		$total_count = 0;
-		foreach($chars as $char) {
-			//$pos = ord($char); we cant use that, its not binary safe
-			$pos = \CMH\Multilingual\Multilingual::uniord($char);
-			//echo $char ." --> ".$pos.PHP_EOL;
-
-			if($pos >= 1536 && $pos <= 1791) {
-				$arabic_count++;
-			} else if($pos > 123 && $pos < 123) {
-				$latin_count++;
-			}
-			$total_count++;
-		}
-		if(($arabic_count/$total_count) > 0.6) {
-			// 60% arabic chars, its probably arabic
-			return true;
-		}
-		return false;
-	}
-	
-	public function getLanguages($project_id){
-		$langVar = $this->languageVariable($project_id);
-		if(!$langVar){
-			$langVar = 'languages';
-		}
-		
-		$q = "SELECT element_enum FROM redcap_metadata WHERE project_id = " . intval($project_id) . " AND field_name = '" . $langVar . "'";
-		$query = db_query($q);
-		$row = db_fetch_assoc($query);
-			
-		$tmp = explode(' \n ', $row['element_enum']);
-		foreach($tmp AS $key => $value){
-			$tmp2 = explode(',', $value);
-			$response[trim($tmp2[0])] = trim($tmp2[1]);
-		}	
-			
-		return $response;
-	}
-	
-	public function getData($project_id, $record){
-		$q = "SELECT record, event_id, field_name, `value` FROM redcap_data
-			WHERE project_id = " . intval($project_id) . 
-			" AND record = '" . $record . "'";
-		$query = db_query($q);
-	
-		while($row = db_fetch_assoc($query)){
-			$response[$row['record']][$row['event_id']][$row['field_name']] = $row['value'];
-		}
-		
-		return $response;
-	}
-	
-	public function getMetaData($project_id, $form = null){
-		$q = "SELECT * FROM redcap_metadata
-			WHERE project_id = " . intval($project_id) 
-			. ($form ? " AND form_name = '" . $form . "'" : "") .
-			" ORDER BY field_order";
-		$query = db_query($q);
-	
-		while($row = db_fetch_assoc($query)){
-			$response[] = $row;
-		}
-		
-		return $response;
-	}
-
-	public function exportData($pid, $lang){
-		global $conn;
-		
-		$langVar = $this->getProjectSetting('languages_variable', $pid);
-		if($langVar == ''){
-			$langVar = 'languages';
-		}
-
-		ini_set('memory_limit','100M');
-		set_time_limit(0);
-
-		$lang = mysqli_real_escape_string($conn, $lang);
-		$pid = mysqli_real_escape_string($conn, $pid);
-
-		$metaDataTableName = $this->getMetaDataTableName($pid);
-
-		//language
-		$query = "SELECT element_enum, element_type, element_validation_type FROM $metaDataTableName
-			WHERE project_id = " . intval($pid) . "
-			AND field_name LIKE '" . $langVar . "'";
-		$result = mysqli_query($conn, $query);
-		$row = mysqli_fetch_array($result);
-
-		$tmp = explode(' \n ', $row['element_enum']);
-		foreach($tmp AS $key => $value){
-			$tmp2 = explode(',', $value);
-			if($tmp2[0] == $lang){
-				$response['language'] = trim($tmp2[1]);
-				break;
-			}
-		}
-
-		//translations
-		$query = "SELECT field_name, element_type, misc, grid_name, element_validation_type, element_label FROM $metaDataTableName
-			WHERE project_id = " . intval($pid) . " AND field_name NOT LIKE 'survey_text%' ORDER BY field_order";
-		$result = mysqli_query($conn, $query);
-
-		while($row = mysqli_fetch_array($result)){
-			$misc = explode('@', $row['misc']);
-			
-			foreach($misc AS $key => $value){
-				//replace ___ with @
-				$value = str_replace('___', '@', $value);
-				
-				//questions
-				if(strpos($value, 'p1000lang') !== false){
-					$value = trim(str_replace('p1000lang', '', $value));
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $response['language']){
-							$response['questions'][$row['field_name']]['text'] = $trans;
-							if(strpos($row['element_validation_type'], 'date') !== false){
-								$response['questions'][$row['field_name']]['type'] = 'date';
-							}
-							else{
-								$response['questions'][$row['field_name']]['type'] = $row['element_type'];
-							}
-							$response['questions'][$row['field_name']]['matrix'] = $row['grid_name'];
-						}
-					}
-				}
-				//answers
-				elseif(strpos($value, 'p1000answers') !== false){
-					$value = trim(str_replace('p1000answers', '', $value));
-					$value = json_decode($value, true);
-					foreach($value AS $key2 => $trans){
-						if($key2 == $response['language']){
-							$response['answers'][$row['field_name']]['text'] = $trans;
-							if(strpos($row['element_validation_type'], 'date') !== false){
-								$response['answers'][$row['field_name']]['type'] = 'date';
-							}
-							elseif(strpos($row['element_validation_type'], 'signature') !== false){
-								$response['answers'][$row['field_name']]['type'] = 'signature';
-							}
-							else{
-								$response['answers'][$row['field_name']]['type'] = $row['element_type'];
-							}
-							$response['answers'][$row['field_name']]['matrix'] = $row['grid_name'];
-						}
-					}
-				}
-			}
-
-			//non translated fields
-			if(!isset($response['questions'][$row['field_name']])){
-				$response['questions'][$row['field_name']]['text'] = $row['element_label'];
-				$response['questions'][$row['field_name']]['type'] = 'text';
-			}
-		}
-
-		//header
-		//$data = '"record_id",';
-		foreach($response['questions'] AS $field_name => $values){
-			if($values['type'] == 'checkbox'){
-				foreach($response['answers'][$field_name]['text'] AS $key => $text){
-					$data .= '"' . strip_tags($values['text']) . ': ' . $text . '",';
-				}
-			}
-			else{
-				$data .= '"' . strip_tags($values['text']) . '",';
-			}
-		}
-		$data .= "\r\n";
-
-		//data
-		$query = "SELECT record, field_name, instance, value FROM redcap_data WHERE project_id = " . $pid . " ORDER BY record";
-		$result = mysqli_query($conn, $query);
-
-		while($row = mysqli_fetch_array($result)){
-			if($response['questions'][$row['field_name']]['type'] == 'checkbox'){
-				$myData[$row['record']][($row['instance'] == null ? 1 : $row['instance'])][$row['field_name'] . '___' . $row['value']] = 1;
-			}
-			else{
-				$myData[$row['record']][($row['instance'] == null ? 1 : $row['instance'])][$row['field_name']] = $row['value'];
-			}
-		}
-
-		//format
-		foreach($myData AS $record => $values){
-			foreach($values AS $instance => $vals){
-				//$data .= '"' . $record . '",';
-				foreach($response['questions'] AS $field_name => $vars){
-					if($vars['type'] == 'checkbox'){
-						foreach($response['answers'][$field_name]['text'] AS $key => $text){
-							$data .= '"' . $myData[$record][$instance][$field_name . '___' . $key] . '",';
-						}
-					}
-					elseif(in_array($response['answers'][$field_name]['type'], array('radio','select','yesno','truefalse'))){
-						$data .= '"' . $response['answers'][$field_name]['text'][$myData[$record][$instance][$field_name]] . '",';
-					}
-					else{
-						$data .= '"' . $myData[$record][$instance][$field_name] . '",';
-					}
-				}
-				$data .= "\r\n";
-			}
-		}
-
-		//export
-		header("Content-type: text/csv");
-		header("Content-Disposition: attachment; filename=\"Multilingual" . ''/*\REDCap::getProjectTitle($pid)*/ . " DATA (" . $response['language'] . ") " . date('Y-m-d Hi') . ".csv\"");
-		header("Pragma: no-cache");
-		header("Expires: 0");
-
-		echo $data;
-	}
-	
-	public function getUserSelectedLanguages($record) {
-		$user_languages = [];
-		
-		$result = $this->queryLogs("SELECT timestamp, message, record_id, language_value, instrument, event_id
-			WHERE message = ? AND record_id = ?", [
-				"user_selected_language",
-				$record
-		]);
-		
-		while($row = db_fetch_assoc($result)) {
-			$instrument = $row['instrument'];
-			$language_value = $row['language_value'];
-			$event_id = $row['event_id'];
-			
-			if (!empty($instrument) && !empty($language_value) && !empty($event_id)) {
-				if (empty($user_languages[$event_id])) {
-					$user_languages[$event_id] = [];
-				}
-				if (empty($user_languages[$event_id][$instrument])) {
-					$user_languages[$event_id][$instrument] = $language_value;
-				}
-			}
-		}
-		
-		return $user_languages;
-	}
-	
-	public function translatePDF(&$metadata, $user_languages) {
-		// translate survey instructions/titles
-		global $Proj;
-		$instruments = json_decode($this->getProjectSetting('instruments'));
-		if ($instruments && !empty($instruments)) {
-			foreach ($Proj->surveys as $id => &$survey) {
-				// determine which language to use for this form
-				$lang = '';
-				$form_name = $survey['form_name'];
-				foreach($user_languages as $event_id => $event) {
-					if (!empty($event[$form_name])) {
-						$lang = $event[$form_name];
-						break;
-					}
-				}
-				if ($lang == '') {
-					continue;
-				}
-				
-				if (!empty($instruments->$form_name->$lang->survey_settings->title)) {
-					$survey['title'] = $instruments->$form_name->$lang->survey_settings->title;
-				}
-				if (!empty($instruments->$form_name->$lang->survey_settings->acknowledgement)) {
-					$survey['instructions'] = $instruments->$form_name->$lang->survey_settings->acknowledgement;
-				}
-			}
-		}
-		
-		// translate field question/answer labels
-		foreach($metadata as &$field) {
-			// see which instrument this field belongs to
-			$parent_form = $field['form_name'];
-			$field_name = $field['field_name'];
-			
-			// get question and answer translations for this field
-			$translations = $this->getFieldTranslations($field);
-			
-			// determine which language to use for that field
-			$lang = '';
-			foreach($user_languages as $event_id => $event) {
-				if (!empty($event[$parent_form])) {
-					$lang = $event[$parent_form];
-					break;
-				}
-			}
-			if ($lang == '') {
-				continue;
-			}
-			
-			// determine the translated field label for this field/lang combo
-			if ($translations['lang'] && $translations['lang'][$lang]) {
-				$field['element_label'] = $translations['lang'][$lang];
-			}
-			
-			// determine the translated answer labels for this field/lang combo
-			if ($translations['answers'] && $translations['answers'][$lang]) {
-				foreach($translations['answers'][$lang] as $raw => $translation) {
-					$translations['answers'][$lang][$raw] = "$raw, $translation";
-				}
-				$field['element_enum'] = implode(" \\n ", $translations['answers'][$lang]);
-			}
-		}
-		
-		return $metadata;
-	}
-	
-	public function getFieldTranslations($field_array) {
-		// this function returns an array like:
-		/*
-		translations = [
-			'lang' => [
-				'English' => 'My Field Label',
-				'Espanol' => 'Mi etiqueta de campo'
-			],
-			'answers' => [
-				'English' => [
-					'0' => 'Zero',
-					'1' => 'One',
-					'2' => 'Two'
-				],
-				'Espanol' => [
-					'0' => 'Cero',
-					'1' => 'Uno',
-					'2' => 'Dos'
-				],
-			]
-		]
-		
-		assuming $field_array passed has 'misc' field with relevant @p1000lang and @p1000answers information
-		*/
-		$translations = [];
-		$field_misc = $field_array['misc'];
-		
-		// determine indexes for p1000lang and p1000answers
-		$regex_capture_p1000 = "/p1000([^{]*)/m";
-		preg_match_all($regex_capture_p1000, $field_misc, $indexes);
-		$indexes = $indexes[1];
-		
-		// capture pieces of field['misc'] that are contained in balanced curly braces (inclusive)
-		$regex_capture_balanced_braces = "/\{(?:[^}{]+|(?R))*+\}/m";
-		preg_match_all($regex_capture_balanced_braces, $field_misc, $matches);
-		if (gettype($matches) == 'array') {
-			$matches = $matches[0];
-			
-			// decode lang json (if applicable)
-			$lang_index = array_search('lang', $indexes, true);
-			if ($lang_index !== false) {
-				$translations['lang'] = json_decode($matches[$lang_index], true);
-			}
-			
-			// decode answers json (if applicable)
-			$answers_index = array_search('answers', $indexes, true);
-			if ($answers_index !== false) {
-				$translations['answers'] = json_decode($matches[$answers_index], true);
-			}
-		}
-		
-		return $translations;
-	}
-	
-}
-?>
+<?php
+namespace CMH\Multilingual;
+
+use ExternalModules\AbstractExternalModule;
+use ExternalModules\ExternalModules;
+use \Piping as Piping;
+use REDCap;
+
+class Multilingual extends AbstractExternalModule
+{
+	public $translate_answer_field_types = [
+		"select",
+		"radio",
+		"checkbox",
+		"yesno",
+		"truefalse",
+		"slider"
+	];
+	
+	function redcap_survey_page($project_id, $record, $instrument, $event_id, $group_id, $survey_hash, $response_id, $repeat_instance){
+		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
+		
+		// add multilingual_survey.js after making text replacements
+		$redcap_survey_javascript = file_get_contents($this->getModulePath() . 'js/multilingual_survey.js');
+		$redcap_survey_javascript = str_replace('REDCAP_PDF_URL', ($this->getProjectSetting('multilingual-econsent', $project_id) ? $this->getUrl("multilingualPDF.php", true, ($api_endpoint == true ? true : false)) : 'false') . '&id=' . $record . '&form=' . $instrument . '&event_id=' . $event_id . '&instance=' . $repeat_instance, $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('REDCAP_INSTRUMENT_NAME', $instrument, $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('MULTILINGUAL_RECORD_ID', $record, $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('MULTILINGUAL_LANGUAGE_SELECTED_URL', $this->getUrl('languageSelected.php'), $redcap_survey_javascript);
+		$redcap_survey_javascript = str_replace('MULTILINGUAL_SURVEY_EVENT', $event_id, $redcap_survey_javascript);
+		
+		// see if pdf translation is configured or not -- set variable in multilingual_survey.js
+		if ($this->getProjectSetting("translate_pdfs_instruments")) {
+			$redcap_survey_javascript = str_replace('MULTILINGUAL_PDF_TRANSLATION_ENABLED', 'true', $redcap_survey_javascript);
+		} else {
+			$redcap_survey_javascript = str_replace('MULTILINGUAL_PDF_TRANSLATION_ENABLED', 'false', $redcap_survey_javascript);
+		}
+		
+		echo "<script type='text/javascript'>$redcap_survey_javascript</script>"; 
+		echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css', true, $api_endpoint == true) . '">';
+	}
+
+	function redcap_survey_complete($project_id, $record, $instrument, $event_id, $group_id = NULL, $survey_hash, $response_id = NULL, $repeat_instance){
+		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
+		// Update and add multilingual_survey_complete
+		echo '<script type="text/javascript">' . str_replace('REDCAP_PDF_URL', ($this->getProjectSetting('multilingual-econsent', $project_id) ? $this->getUrl("multilingualPDF.php", true, ($api_endpoint == true ? true : false)) : 'false') . '&id=' . $record . '&form=' . $instrument . '&event_id=' . $event_id . '&instance=' . $repeat_instance , str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), file_get_contents($this->getModulePath() . 'js/multilingual_survey_complete.js')))) . '</script>';
+	}
+
+	function redcap_data_entry_form($project_id, $record, $instrument){
+		echo '<script type="text/javascript">' . str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual.js')))) . '</script>';
+		echo '<link rel="stylesheet" type="text/css" href="' . $this->getUrl('css/multilingual.css') . '">';
+	}
+	
+	function redcap_pdf($project_id, $metadata, $data, $instrument, $record, $event_id, $instance) {
+		// delay execution of this module to allow multi-consent-signature module to do it's thing
+		if ($this->delayModuleExecution()) {
+			return;
+		}
+		
+		// get which languages were selected for which instruments by the user as they were taking surveys
+		$user_langs = $this->getUserSelectedLanguages($record);
+		
+		if (empty($user_langs)) {
+			// user never selected a lang, do no translations
+			return array('metadata'=>$metadata, 'data'=>$data);
+		}
+		
+		// log to project event table
+		$action_description = "Translating Generated PDF";
+		$changes_made = "The Multilingual module will translate field labels (for each instrument) based on language selections the user made in survey(s).";
+		\REDCap::logEvent($action_description, $changes_made, null, $record_id, $event_id);
+		
+		// translate metadata using user selected languages
+		global $Proj;
+		$translated_metadata = $this->translatePDF($metadata, $user_langs);
+		
+		return array('metadata'=>$translated_metadata, 'data'=>$data);
+	}
+
+	function redcap_every_page_top($project_id){
+		$api_endpoint = $this->getProjectSetting('use-api-endpoint', $project_id);
+		$at_survey_settings = strpos($_SERVER['REQUEST_URI'], 'Surveys/edit_info.php') !== false || strpos($_SERVER['REQUEST_URI'], 'Surveys/create_survey.php') !== false;
+		
+		//$user_rights = REDCap::getUserRights();
+		//echo json_encode($user_rights);
+		
+		if(strpos($_SERVER['REQUEST_URI'], 'online_designer.php') !== false && isset($_GET['page'])){
+			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
+			echo '<script type="text/javascript">' . str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_setup.js'))) . '</script>';
+		}
+		elseif(strpos($_SERVER['REQUEST_URI'], 'DataExport/index.php') !== false){
+			echo '<script type="text/javascript">' . str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_export.js'))) . '</script>';
+		}
+		elseif($_GET['__return'] == 1 or (isset($_GET['s']) && !isset($_GET['__page__']))){
+			$instrument = $_GET['page'];
+			echo '<script type="text/javascript">' . 
+			str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, 
+			str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), 
+			str_replace('REDCAP_INSTRUMENT_NAME', $instrument, 
+			str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true, ($api_endpoint == true ? true : false)), 
+			file_get_contents($this->getModulePath() . 'js/multilingual_survey_return.js'))))) . '</script>';
+			
+			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css', true, ($api_endpoint == true ? true : false)) . '">';
+		}
+		elseif(strpos($_SERVER['REQUEST_URI'], 'DataEntry/index.php') !== false || strpos($_SERVER['REQUEST_URI'], 'DataEntry/record_home.php') !== false){
+			echo '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
+			echo '<script type="text/javascript">' . str_replace('PDF_URL', $this->getUrl("multilingualPDF.php", true), str_replace('APP_PATH_IMAGES', APP_PATH_IMAGES, str_replace('REDCAP_LANGUAGE_VARIABLE', $this->languageVariable($project_id), str_replace('REDCAP_AJAX_URL', $this->getUrl("index.php", true), file_get_contents($this->getModulePath() . 'js/multilingual_pdf.js'))))) . '</script>';
+		}
+		elseif($at_survey_settings && isset($_GET['page'])){
+			$index_url = $this->getUrl("index.php", true, ($api_endpoint == true ? true : false));
+			$language_var = $this->languageVariable($project_id);
+			$stylesheet = '<link rel="stylesheet" type="text/css" href="' .  $this->getUrl('css/multilingual.css') . '">';
+			$ml_survey_settings_js = '<script type="text/javascript">' . file_get_contents($this->getUrl('js/multilingual_survey_settings.js')) . '</script>';
+			$ml_survey_settings_js = str_replace('REDCAP_AJAX_URL', $index_url, $ml_survey_settings_js);
+			$ml_survey_settings_js = str_replace('REDCAP_LANGUAGE_VARIABLE', $language_var, $ml_survey_settings_js);
+			
+			echo $stylesheet;
+			echo $ml_survey_settings_js;
+		}
+	}
+
+	/**
+	 * @param $projectId
+	 * @return string
+	 */
+	private function getMetaDataTableName($projectId){
+		global $conn;
+		if($this->getProjectSetting('use-drafted-changes', $projectId)){
+			$query = "select draft_mode from redcap_projects where project_id = " . mysqli_real_escape_string($conn, $data['project_id']);
+			if($result = mysqli_query($conn, $query)){
+				if($row = mysqli_fetch_array($result)){
+					$draftMode = $row["draft_mode"];
+					return "redcap_metadata".($draftMode == 1?"_temp":"");
+				}else{
+					error_log("Multilingual: no row to determine draft_mode");
+				}
+				mysqli_free_result($result);
+			}else{
+				error_log("Multilingual: no result to determine draft_mode");
+			}
+		}
+		return "redcap_metadata";
+	}
+	
+	public function languageVariable($project_id){
+		$langVar = $this->getProjectSetting('languages_variable', $project_id);
+		if($langVar == ''){
+			$langVar = 'languages';
+		}
+		return $langVar;
+	}
+	
+	public function getSurveySettings($data) {
+		$instruments = $this->getProjectSetting('instruments');
+		
+		if (!empty($instruments)) {
+			$instruments = json_decode($instruments);
+			$name = htmlspecialchars($data['instrument']);
+			$instrument = $instruments->$name;
+		} else {
+			$instruments = new \stdClass();
+		}
+		
+		header('Content-Type: application/json');
+		echo json_encode($instrument);
+	}
+	
+	public function saveSurveySettings($all_data) {
+		$instruments = $this->getProjectSetting('instruments');
+		if (empty($instruments)) {
+			$instruments = new \stdClass();
+		} else {
+			$instruments = json_decode($instruments);
+		}
+		
+		foreach ($all_data as $data) {
+			$instrument = htmlspecialchars($data['instrument']);
+			$lang = htmlspecialchars($data['language']);
+			if (empty($instruments->$instrument)) {
+				$instruments->$instrument = new \stdClass();
+			}
+			if (empty($instruments->$instrument->$lang)) {
+				$instruments->$instrument->$lang = new \stdClass();
+			}
+			foreach ($data['collections'] as $coll_name => $coll) {
+				$instruments->$instrument->$lang->$coll_name = new \stdClass();
+				
+				// add each setting to collection after encoding HTML
+				foreach ($coll as $sname => $setting) {
+					$instruments->$instrument->$lang->$coll_name->$sname = htmlspecialchars($setting);
+				}
+			}
+		}
+		
+		$this->setProjectSetting('instruments', json_encode($instruments));
+	}
+
+	public function getSettings($data){
+		$response = $this->getProjectSettings($data['project_id']);
+		
+		foreach($response AS $key => $values){
+			if($key == 'button-width'){
+				if(substr($response[$key], -2) != 'px'){
+					$response[$key] = '100px';
+				}
+				elseif(intval(str_replace('px', '', $response[$key])) < 1){
+					$response[$key] = '100px';
+				}
+			}
+			elseif($key == 'languages_variable' && $response[$key] == null){
+				$response[$key] = 'languages';
+			}
+		}
+
+		header('Content-Type: application/json');
+		echo json_encode($response);
+	}
+
+	public function getAnswers($data){
+		global $conn;
+
+		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
+		$data['field_name'] = mysqli_real_escape_string($conn, $data['field_name']);
+
+		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
+
+		if($data['matrix'] == 1){
+			$query = "SELECT element_enum, element_type, element_validation_type, element_validation_min, element_validation_max FROM $metaDataTableName
+				WHERE project_id = " . intval($data['project_id']) . "
+				AND grid_name LIKE '" . $data['field_name'] . "'
+				LIMIT 1";
+		}
+		else{
+			$query = "SELECT element_enum, element_type, element_validation_type FROM $metaDataTableName
+				WHERE project_id = " . intval($data['project_id']) . "
+				AND field_name LIKE '" . $data['field_name'] . "'";
+		}
+		$result = mysqli_query($conn, $query);
+
+		$row = mysqli_fetch_array($result);
+
+		if(strpos(' \n ', $row['element_enum']) !== false){
+			$tmp = explode(' \n ', $row['element_enum']);
+		}
+		else{
+			$tmp = explode('\n', $row['element_enum']);
+		}
+
+		foreach($tmp AS $key => $value){
+			$tmp2 = explode(',', $value);
+			$response[trim($tmp2[0])] = trim($tmp2[1]);
+		}
+
+		if($row['element_type'] == 'text' && (strpos($row['element_validation_type'], 'date') !== false || strpos($row['element_validation_type'], 'time') !== false)){
+			$response = null;
+			$response['0'] = 'Answer';
+		}
+		elseif($row['element_type'] == 'file' && strpos($row['element_validation_type'], 'signature') !== false){
+			$response = null;
+			$response['0'] = 'Answer';
+		}
+		elseif($row['element_type'] == 'file' && $row['element_validation_type'] == null){
+			$response = null;
+			$response['0'] = 'Answer';
+		}
+		elseif($row['element_type'] == 'calc'){
+			$response = null;
+			$response[""] = "";
+		}
+		elseif($row['element_type'] == 'yesno'){
+			$response = null;
+			$response['0'] = "No";
+			$response['1'] = "Yes";
+		}
+		elseif($row['element_type'] == 'truefalse'){
+			$response = null;
+			$response['0'] = "False";
+			$response['1'] = "True";
+		}
+		elseif($row['element_type'] == 'slider'){
+			$response = explode('|', array_keys($response)[0]);
+			$response = array_map('trim',$response);
+			if (count($response) == 3){$keys = array('0', '50', '100');}
+			elseif(count($response) == 2){$keys = array('0', '100');}
+			elseif(count($response) == 1){$keys = array('0');}
+			else{$keys = array();}
+			$response = array_combine($keys, $response);
+		}
+
+		header('Content-Type: application/json');
+		echo json_encode($response);
+	}
+
+	public function getTranslations($data, $projectSettings){
+		global $conn;
+		$layout_set = 0;
+
+		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
+		$data['page'] = mysqli_real_escape_string($conn, $data['page']);
+
+		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
+
+		$query = "SELECT field_name, element_type, misc, grid_name, element_validation_type, element_validation_min, element_validation_max, element_label FROM $metaDataTableName
+			WHERE project_id = " . intval($data['project_id']) 
+				. ($data['page'] !='' ? " AND (form_name LIKE '" . $data['page'] . "' OR field_name LIKE 'survey_text_" . $data['page'] . "')" : '');
+		$result = mysqli_query($conn, $query);
+
+		while($row = mysqli_fetch_array($result)){
+			//default questions
+			$response['defaults'][$row['field_name']] = strip_tags($row['element_label']. '<br>');
+			
+			//$misc = explode("@", $row['misc']);
+			$misc = str_getcsv($row['misc'], '@');
+			//$response['test'] = $misc;
+
+			$response['all'][$row['field_name']] = $misc;
+			foreach($misc AS $key => $value){
+				//replace ___ with @
+				$value = str_replace('___', '@', $value);
+				
+				//questions
+				if(strpos($value, 'p1000lang') !== false){
+					$value = trim(str_replace('p1000lang', '', $value));
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $data['lang']){
+							$response['questions'][$row['field_name']]['text'] = Piping::replaceVariablesInLabel($trans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
+							if(strpos($row['element_validation_type'], 'date') !== false){
+								$response['questions'][$row['field_name']]['type'] = 'date';
+							}
+							elseif(strpos($row['element_validation_type'], 'time') !== false){
+								$response['questions'][$row['field_name']]['type'] = 'time';
+							}
+							else{
+								$response['questions'][$row['field_name']]['type'] = $row['element_type'];
+							}
+							$response['questions'][$row['field_name']]['matrix'] = $row['grid_name'];
+
+							//layout
+							if($layout_set == 0){
+								if(\CMH\Multilingual\Multilingual::is_arabic($trans) === true){
+									$response['layout'] = 'rtl';
+								}
+								else{
+									$response['layout'] = 'ltr';
+								}
+								$layout_set = 1;
+							}
+						}
+					}
+				}
+
+				//answers
+				elseif(strpos($value, 'p1000answers') !== false){
+					$value = trim(str_replace('p1000answers', '', $value));
+
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $data['lang']){
+							foreach($trans AS $key3 => $newTrans){
+								if($row['element_type'] == 'select'){
+									$trans[$key3] = strip_tags(Piping::replaceVariablesInLabel($newTrans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']), '<br>');
+								}
+								else{
+									$trans[$key3] = Piping::replaceVariablesInLabel($newTrans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
+								}
+							}
+
+							$response['answers'][$row['field_name']]['text'] = $trans;
+							if(strpos($row['element_validation_type'], 'date') !== false){
+								$response['answers'][$row['field_name']]['type'] = 'date';
+							}
+							elseif(strpos($row['element_validation_type'], 'time') !== false){
+								$response['answers'][$row['field_name']]['type'] = 'time';
+							}
+							elseif(strpos($row['element_validation_type'], 'signature') !== false){
+								$response['answers'][$row['field_name']]['type'] = 'signature';
+							}
+							else{
+								$response['answers'][$row['field_name']]['type'] = $row['element_type'];
+							}
+							$response['answers'][$row['field_name']]['matrix'] = $row['grid_name'];
+						}
+					}
+				}
+				//errors
+				elseif(strpos($value, 'p1000errors') !== false){
+					$value = trim(str_replace('p1000errors', '', $value));
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $data['lang']){
+							$response['errors'][$row['field_name']]['text'] = $trans;
+							if(strpos($row['element_validation_type'], 'date') !== false){
+								$response['errors'][$row['field_name']]['type'] = 'date';
+							}
+							else{
+								$response['errors'][$row['field_name']]['type'] = $row['element_type'];
+							}
+							$response['errors'][$row['field_name']]['matrix'] = $row['grid_name'];
+						}
+					}
+				}
+				//field notes
+				elseif(strpos($value, 'p1000notes') !== false){
+					$value = str_replace('p1000notes', '', $value);
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $data['lang']){
+							$response['notes'][$row['field_name']]['text'] = Piping::replaceVariablesInLabel($trans, ($data['record_id'] ? $data['record_id'] : '0'), $data['event_id']);
+						}
+					}
+				}
+				//survey tranlations
+				elseif(strpos($value, 'p1000surveytext') !== false){
+					$value = trim(str_replace('p1000surveytext', '', $value));
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $data['lang']){
+							foreach($trans AS $survey_id => $survey_text){
+								$response['surveytext'][$survey_id] = $survey_text;
+							}
+						}
+					}
+				}
+			}
+
+			// if error message is not set
+			if(!isset($response['errors'][$row['field_name']])){
+				// if it is a text field with validation
+				if($row['element_type'] == 'text' && !empty($row['element_validation_type'])){
+
+					// Make array of error messages from project settings if not already made
+					if (!isset($defaultError)){
+						// make array of default error prompts
+						$defaultError = array();
+						$defaultError = array_fill_keys($projectSettings['validation'], NULL);
+
+						foreach($projectSettings['validation'] AS $key => $valid_type){
+							$defaultError[$valid_type] = array_combine($projectSettings['lang'][$key], $projectSettings['error'][$key]);
+						}
+					}
+
+					// If the text field's validation matches with any defined default error messages, use the default error messages
+					if (array_key_exists($row['element_validation_type'], $defaultError)){
+						if (array_key_exists($data['lang'], $defaultError[$row['element_validation_type']])){
+
+							// Check if the variable contains "[validation_range]", if so, pipe it with the actual range.
+							if (strpos($defaultError[$row['element_validation_type']][$data['lang']], "[validation_range]") !== false){
+
+								if (empty($row['element_validation_min']) && empty($row['element_validation_max'])){
+									$validationRange = '';
+								} else {
+									$validationRange = '('.$row['element_validation_min'].' - '.$row['element_validation_max'].')';
+								}
+
+								$response['errors'][$row['field_name']]['text'] = str_replace("[validation_range]", $validationRange, $defaultError[$row['element_validation_type']][$data['lang']]);
+							} else {
+								$response['errors'][$row['field_name']]['text'] = $defaultError[$row['element_validation_type']][$data['lang']];
+							}
+						}
+					}
+				}
+			}
+		}
+		
+		// override
+		$instruments = $this->getProjectSetting('instruments');
+		if (!empty($instruments)) {
+			$instruments = json_decode($instruments);
+			$form_name = $data['page'];
+			$this_lang = $data['lang'];
+			$simple_settings = $instruments->$form_name->$this_lang;
+			if (!empty($simple_settings)) {
+				$general_settings = $simple_settings->survey_settings;
+				if (!empty($general_settings)) {
+					if (!empty($general_settings->title) || $general_settings->title == "")
+						$response['surveytext']['surveytitle'] = html_entity_decode($general_settings->title);
+					if (!empty($general_settings->instructions) || $general_settings->instructions == "")
+						$response['surveytext']['surveyinstructions'] = html_entity_decode($general_settings->instructions);
+					if (!empty($general_settings->acknowledgement) || $general_settings->acknowledgement == "")
+						$response['surveytext']['surveyacknowledgment'] = html_entity_decode($general_settings->acknowledgement);
+				}
+			}
+		}
+		
+		//update language field
+		$response['exist'] = $this->updateLangVar($data);
+		$response['table'] = $metaDataTableName;
+
+		header('Content-Type: application/json');
+		echo json_encode($response);
+	}
+	
+	public function getRecordVar($data){
+		global $conn;
+
+		$data['project_id'] = mysqli_real_escape_string($conn, $data['project_id']);
+
+		$metaDataTableName = $this->getMetaDataTableName($data['project_id']);
+		
+		$query = "SELECT field_name FROM $metaDataTableName where project_id = " . intval($data['project_id']) . " ORDER BY field_order LIMIT 1";
+		$result = mysqli_query($conn, $query);
+		$row = mysqli_fetch_array($result);
+		
+		return $row['field_name'];
+	}
+	
+	public function getSavedLang($data){
+		if($data['record_id'] != ''){
+			$langVar = $this->getProjectSetting('languages_variable', $data['project_id']);
+			$tmp = json_decode(REDCap::getData($data['project_id'], 'json', array($data['record_id']), array($langVar)),true);
+			if(!empty($tmp)){
+				header('Content-Type: application/json');
+				echo json_encode($tmp[0][$langVar]);
+			}
+			else{
+				return null;
+			}
+		}
+		else{
+			return null;
+		}
+		
+	}
+	
+	public function updateLangVar($data){
+		if($data['record_id'] != ''){
+			$exist = json_decode(\REDCap::getData($data['project_id'], 'json', $data['record_id']), true);
+			if(!empty($exist)){
+				$recordVar = $this->getRecordVar($data);
+				$langVar = $this->getProjectSetting('languages_variable', $data['project_id']);
+				
+				$t = array($recordVar => $data['record_id'], ($langVar != null ? $langVar : 'languages') => $data['lang_id'], 'redcap_event_name' => $this->getEventName($data['event_id']));
+				$json_data = json_encode(array($t));
+				$tmp = \REDCap::saveData($data['project_id'], 'json', $json_data, 'normal');
+
+				return $tmp;
+			}
+		}
+	}
+	
+	public function getEventName($event_id){
+		global $conn;
+		
+		$query = "SELECT descrip, arm_id FROM redcap_events_metadata WHERE event_id = " . intval($event_id);
+		$result = mysqli_query($conn, $query);
+		$row = mysqli_fetch_array($result); 
+		
+		$event_name = strtolower(str_replace(" ", "_", $row['descrip']));
+		
+		$query = "SELECT arm_name FROM redcap_events_arms WHERE arm_id = " . intval($row['arm_id']);
+		$result = mysqli_query($conn, $query);
+		$row = mysqli_fetch_array($result); 
+		
+		$event_name .= '_' . strtolower(str_replace(" ", "_", $row['arm_name']));
+		
+		return $event_name;
+	}
+
+	//copied from php.net
+	public function uniord($u) {
+		// i just copied this function fron the php.net comments, but it should work fine!
+		$k = mb_convert_encoding($u, 'UCS-2LE', 'UTF-8');
+		$k1 = ord(substr($k, 0, 1));
+		$k2 = ord(substr($k, 1, 1));
+		return $k2 * 256 + $k1;
+	}
+	//copied from stackoverflow
+	public function is_arabic($str) {
+		if(mb_detect_encoding($str) !== 'UTF-8') {
+			$str = mb_convert_encoding($str,mb_detect_encoding($str),'UTF-8');
+		}
+
+		/*
+		$str = str_split($str); <- this function is not mb safe, it splits by bytes, not characters. we cannot use it
+		$str = preg_split('//u',$str); <- this function woulrd probably work fine but there was a bug reported in some php version so it pslits by bytes and not chars as well
+		*/
+		preg_match_all('/.|\n/u', $str, $matches);
+		$chars = $matches[0];
+		$arabic_count = 0;
+		$latin_count = 0;
+		$total_count = 0;
+		foreach($chars as $char) {
+			//$pos = ord($char); we cant use that, its not binary safe
+			$pos = \CMH\Multilingual\Multilingual::uniord($char);
+			//echo $char ." --> ".$pos.PHP_EOL;
+
+			if($pos >= 1536 && $pos <= 1791) {
+				$arabic_count++;
+			} else if($pos > 123 && $pos < 123) {
+				$latin_count++;
+			}
+			$total_count++;
+		}
+		if(($arabic_count/$total_count) > 0.6) {
+			// 60% arabic chars, its probably arabic
+			return true;
+		}
+		return false;
+	}
+	
+	public function getLanguages($project_id){
+		$langVar = $this->languageVariable($project_id);
+		if(!$langVar){
+			$langVar = 'languages';
+		}
+		
+		$q = "SELECT element_enum FROM redcap_metadata WHERE project_id = " . intval($project_id) . " AND field_name = '" . $langVar . "'";
+		$query = db_query($q);
+		$row = db_fetch_assoc($query);
+			
+		$tmp = explode(' \n ', $row['element_enum']);
+		foreach($tmp AS $key => $value){
+			$tmp2 = explode(',', $value);
+			$response[trim($tmp2[0])] = trim($tmp2[1]);
+		}	
+			
+		return $response;
+	}
+	
+	public function getMetaData2($project_id, $form = null){
+		$q = "SELECT * FROM redcap_metadata
+			WHERE project_id = " . intval($project_id) 
+			. ($form ? " AND form_name = '" . $form . "'" : "") .
+			" ORDER BY field_order";
+		$query = db_query($q);
+	
+		while($row = db_fetch_assoc($query)){
+			$response[] = $row;
+		}
+		
+		return $response;
+	}
+
+	public function exportData($pid, $lang){
+		global $conn;
+		
+		$langVar = $this->getProjectSetting('languages_variable', $pid);
+		if($langVar == ''){
+			$langVar = 'languages';
+		}
+
+		ini_set('memory_limit','100M');
+		set_time_limit(0);
+
+		$lang = mysqli_real_escape_string($conn, $lang);
+		$pid = mysqli_real_escape_string($conn, $pid);
+
+		$metaDataTableName = $this->getMetaDataTableName($pid);
+
+		//language
+		$query = "SELECT element_enum, element_type, element_validation_type FROM $metaDataTableName
+			WHERE project_id = " . intval($pid) . "
+			AND field_name LIKE '" . $langVar . "'";
+		$result = mysqli_query($conn, $query);
+		$row = mysqli_fetch_array($result);
+
+		$tmp = explode(' \n ', $row['element_enum']);
+		foreach($tmp AS $key => $value){
+			$tmp2 = explode(',', $value);
+			if($tmp2[0] == $lang){
+				$response['language'] = trim($tmp2[1]);
+				break;
+			}
+		}
+
+		//translations
+		$query = "SELECT field_name, element_type, misc, grid_name, element_validation_type, element_label FROM $metaDataTableName
+			WHERE project_id = " . intval($pid) . " AND field_name NOT LIKE 'survey_text%' ORDER BY field_order";
+		$result = mysqli_query($conn, $query);
+
+		while($row = mysqli_fetch_array($result)){
+			$misc = explode('@', $row['misc']);
+			
+			foreach($misc AS $key => $value){
+				//replace ___ with @
+				$value = str_replace('___', '@', $value);
+				
+				//questions
+				if(strpos($value, 'p1000lang') !== false){
+					$value = trim(str_replace('p1000lang', '', $value));
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $response['language']){
+							$response['questions'][$row['field_name']]['text'] = $trans;
+							if(strpos($row['element_validation_type'], 'date') !== false){
+								$response['questions'][$row['field_name']]['type'] = 'date';
+							}
+							else{
+								$response['questions'][$row['field_name']]['type'] = $row['element_type'];
+							}
+							$response['questions'][$row['field_name']]['matrix'] = $row['grid_name'];
+						}
+					}
+				}
+				//answers
+				elseif(strpos($value, 'p1000answers') !== false){
+					$value = trim(str_replace('p1000answers', '', $value));
+					$value = json_decode($value, true);
+					foreach($value AS $key2 => $trans){
+						if($key2 == $response['language']){
+							$response['answers'][$row['field_name']]['text'] = $trans;
+							if(strpos($row['element_validation_type'], 'date') !== false){
+								$response['answers'][$row['field_name']]['type'] = 'date';
+							}
+							elseif(strpos($row['element_validation_type'], 'signature') !== false){
+								$response['answers'][$row['field_name']]['type'] = 'signature';
+							}
+							else{
+								$response['answers'][$row['field_name']]['type'] = $row['element_type'];
+							}
+							$response['answers'][$row['field_name']]['matrix'] = $row['grid_name'];
+						}
+					}
+				}
+			}
+
+			//non translated fields
+			if(!isset($response['questions'][$row['field_name']])){
+				$response['questions'][$row['field_name']]['text'] = $row['element_label'];
+				$response['questions'][$row['field_name']]['type'] = 'text';
+			}
+		}
+
+		//header
+		//$data = '"record_id",';
+		foreach($response['questions'] AS $field_name => $values){
+			if($values['type'] == 'checkbox'){
+				foreach($response['answers'][$field_name]['text'] AS $key => $text){
+					$data .= '"' . strip_tags($values['text']) . ': ' . $text . '",';
+				}
+			}
+			else{
+				$data .= '"' . strip_tags($values['text']) . '",';
+			}
+		}
+		$data .= "\r\n";
+
+		//data
+		$query = "SELECT record, field_name, instance, value FROM redcap_data WHERE project_id = " . $pid . " ORDER BY record";
+		$result = mysqli_query($conn, $query);
+
+		while($row = mysqli_fetch_array($result)){
+			if($response['questions'][$row['field_name']]['type'] == 'checkbox'){
+				$myData[$row['record']][($row['instance'] == null ? 1 : $row['instance'])][$row['field_name'] . '___' . $row['value']] = 1;
+			}
+			else{
+				$myData[$row['record']][($row['instance'] == null ? 1 : $row['instance'])][$row['field_name']] = $row['value'];
+			}
+		}
+
+		//format
+		foreach($myData AS $record => $values){
+			foreach($values AS $instance => $vals){
+				//$data .= '"' . $record . '",';
+				foreach($response['questions'] AS $field_name => $vars){
+					if($vars['type'] == 'checkbox'){
+						foreach($response['answers'][$field_name]['text'] AS $key => $text){
+							$data .= '"' . $myData[$record][$instance][$field_name . '___' . $key] . '",';
+						}
+					}
+					elseif(in_array($response['answers'][$field_name]['type'], array('radio','select','yesno','truefalse'))){
+						$data .= '"' . $response['answers'][$field_name]['text'][$myData[$record][$instance][$field_name]] . '",';
+					}
+					else{
+						$data .= '"' . $myData[$record][$instance][$field_name] . '",';
+					}
+				}
+				$data .= "\r\n";
+			}
+		}
+
+		//export
+		header("Content-type: text/csv");
+		header("Content-Disposition: attachment; filename=\"Multilingual" . ''/*\REDCap::getProjectTitle($pid)*/ . " DATA (" . $response['language'] . ") " . date('Y-m-d Hi') . ".csv\"");
+		header("Pragma: no-cache");
+		header("Expires: 0");
+
+		echo $data;
+	}
+	
+	public function getUserSelectedLanguages($record) {
+		$user_languages = [];
+		
+		$result = $this->queryLogs("SELECT timestamp, message, record_id, language_value, instrument, event_id
+			WHERE message = ? AND record_id = ?", [
+				"user_selected_language",
+				$record
+		]);
+		
+		while($row = db_fetch_assoc($result)) {
+			$instrument = $row['instrument'];
+			$language_value = $row['language_value'];
+			$event_id = $row['event_id'];
+			
+			if (!empty($instrument) && !empty($language_value) && !empty($event_id)) {
+				if (empty($user_languages[$event_id])) {
+					$user_languages[$event_id] = [];
+				}
+				if (empty($user_languages[$event_id][$instrument])) {
+					$user_languages[$event_id][$instrument] = $language_value;
+				}
+			}
+		}
+		
+		return $user_languages;
+	}
+	
+	public function translatePDF(&$metadata, $user_languages) {
+		// translate survey instructions/titles
+		global $Proj;
+		$instruments = json_decode($this->getProjectSetting('instruments'));
+		if ($instruments && !empty($instruments)) {
+			foreach ($Proj->surveys as $id => &$survey) {
+				// determine which language to use for this form
+				$lang = '';
+				$form_name = $survey['form_name'];
+				foreach($user_languages as $event_id => $event) {
+					if (!empty($event[$form_name])) {
+						$lang = $event[$form_name];
+						break;
+					}
+				}
+				if ($lang == '') {
+					continue;
+				}
+				
+				if (!empty($instruments->$form_name->$lang->survey_settings->title)) {
+					$survey['title'] = $instruments->$form_name->$lang->survey_settings->title;
+				}
+				if (!empty($instruments->$form_name->$lang->survey_settings->acknowledgement)) {
+					$survey['instructions'] = $instruments->$form_name->$lang->survey_settings->acknowledgement;
+				}
+			}
+		}
+		
+		// translate field question/answer labels
+		foreach($metadata as &$field) {
+			// see which instrument this field belongs to
+			$parent_form = $field['form_name'];
+			$field_name = $field['field_name'];
+			
+			// get question and answer translations for this field
+			$translations = $this->getFieldTranslations($field);
+			
+			// determine which language to use for that field
+			$lang = '';
+			foreach($user_languages as $event_id => $event) {
+				if (!empty($event[$parent_form])) {
+					$lang = $event[$parent_form];
+					break;
+				}
+			}
+			if ($lang == '') {
+				continue;
+			}
+			
+			// determine the translated field label for this field/lang combo
+			if ($translations['lang'] && $translations['lang'][$lang]) {
+				$field['element_label'] = $translations['lang'][$lang];
+			}
+			
+			// determine the translated answer labels for this field/lang combo
+			if ($translations['answers'] && $translations['answers'][$lang]) {
+				foreach($translations['answers'][$lang] as $raw => $translation) {
+					$translations['answers'][$lang][$raw] = "$raw, $translation";
+				}
+				$field['element_enum'] = implode(" \\n ", $translations['answers'][$lang]);
+			}
+		}
+		
+		return $metadata;
+	}
+	
+	public function getFieldTranslations($field_array) {
+		// this function returns an array like:
+		/*
+		translations = [
+			'lang' => [
+				'English' => 'My Field Label',
+				'Espanol' => 'Mi etiqueta de campo'
+			],
+			'answers' => [
+				'English' => [
+					'0' => 'Zero',
+					'1' => 'One',
+					'2' => 'Two'
+				],
+				'Espanol' => [
+					'0' => 'Cero',
+					'1' => 'Uno',
+					'2' => 'Dos'
+				],
+			]
+		]
+		
+		assuming $field_array passed has 'misc' field with relevant @p1000lang and @p1000answers information
+		*/
+		$translations = [];
+		$field_misc = $field_array['misc'];
+		
+		// determine indexes for p1000lang and p1000answers
+		$regex_capture_p1000 = "/p1000([^{]*)/m";
+		preg_match_all($regex_capture_p1000, $field_misc, $indexes);
+		$indexes = $indexes[1];
+		
+		// capture pieces of field['misc'] that are contained in balanced curly braces (inclusive)
+		$regex_capture_balanced_braces = "/\{(?:[^}{]+|(?R))*+\}/m";
+		preg_match_all($regex_capture_balanced_braces, $field_misc, $matches);
+		if (gettype($matches) == 'array') {
+			$matches = $matches[0];
+			
+			// decode lang json (if applicable)
+			$lang_index = array_search('lang', $indexes, true);
+			if ($lang_index !== false) {
+				$translations['lang'] = json_decode($matches[$lang_index], true);
+			}
+			
+			// decode answers json (if applicable)
+			$answers_index = array_search('answers', $indexes, true);
+			if ($answers_index !== false) {
+				$translations['answers'] = json_decode($matches[$answers_index], true);
+			}
+		}
+		
+		return $translations;
+	}
+	
+}
+?>
diff --git a/config.json b/config.json
index f5a5c50..a202297 100644
--- a/config.json
+++ b/config.json
@@ -1,10 +1,14 @@
 {
-	"name": "Multilingual",
+	"name": "Multilingual (deprecated)",
 
 	"namespace": "CMH\\Multilingual",
 
-	"description": "Allow survey's and data entry forms to be translated into multiple languages. Add translations via the Online Designer.",
+	"description": "<b>This module does not work properly in newer PHP versions, and has been deprecated in favor of REDCap's built-in Multi-Language Management feature.</b>  Allow survey's and data entry forms to be translated into multiple languages. Add translations via the Online Designer.",
 
+	"compatibility": {
+		"php-version-max": "7.99.99"
+	},
+	
 	"versions": [
 		{"1.2": "Move all functions into Multilingual class"},
 		{"1.3": "Fix matrix column label order"},
diff --git a/multilingualPDF.php b/multilingualPDF.php
index 64008b8..6c8b427 100644
--- a/multilingualPDF.php
+++ b/multilingualPDF.php
@@ -44,7 +44,7 @@ function getName($n) {
 	ob_end_clean();
 	
 	//get metadata
-	$metadata = $module->getMetaData(intval(intval($_GET['pid'])), $_GET['form']);
+	$metadata = $module->getMetaData2(intval(intval($_GET['pid'])), $_GET['form']);
 
 	//replace labels and element_enum with translations
 	foreach($metadata AS $key => $values){