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MySQL_wrapper.class.php
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MySQL_wrapper.class.php
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<?php
/******************************************************************
*
* Projectname: PHP MySQL Wrapper Class
* Version: 1.6.1
* Author: Radovan Janjic <[email protected]>
* Link: https://github.com/uzi88/PHP_MySQL_wrapper
* Last modified: 29 10 2014
* Copyright (C): 2008-2014 IT-radionica.com, All Rights Reserved
*
* GNU General Public License (Version 2, June 1991)
*
* This program is free software; you can redistribute
* it and/or modify it under the terms of the GNU
* General Public License as published by the Free
* Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* This program is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
******************************************************************/
/** Execute MySQL queries defined programmatically.
* @param string $server - MySQL Host name or ( host:port )
* @param string $username - MySQL User
* @param string $password - MySQL Password
* @param string $database - MySQL Database
*/
class MySQL_wrapper {
/** Class Version
* @var float
*/
private $version = '1.6.2';
/** Store the single instance
* @var array
*/
private static $instance = array();
/** MySQL Host name
* @var string
*/
private $server = NULL;
/** MySQL User
* @var string
*/
private $username = NULL;
/** MySQL Password
* @var string
*/
private $password = NULL;
/** MySQL Database
* @var string
*/
private $database = NULL;
/** mysql / mysqli
* @var string
*/
public $extension = 'mysqli';
/** Connection Charset (Default: UTF-8)
* @var string
*/
public $charset = 'utf8';
/** Error Description
* @var string
* */
public $error = NULL;
/** Error Number
* @var integer
*/
public $errorNo = 0;
/** Display Errors (Default: TRUE)
* @var boolean
*/
public $displayError = TRUE;
/** Link
* @var resource
*/
public $link = 0;
/** Query
* @var resource
*/
public $query = 0;
/** Affected Rows
* @var integer
*/
public $affected = 0;
/** Previous query
* @var string
*/
public $prevQuery = NULL;
/** Log Queries to file (Default: FALSE)
* @var boolean
*/
public $logQueries = FALSE;
/** Log Errors to file (Default: FALSE)
* @var boolean
*/
public $logErrors = FALSE;
/** Stop script execution on error (Default: FALSE)
* @var boolean
*/
public $dieOnError = FALSE;
/** E-mail errors (Default: FALSE)
* @var boolean
*/
public $emailErrors = FALSE;
/** E-mail errors to (array with emails)
* @var array
*/
public $emailErrorsTo = array();
/** E-mail errors subject
* @var string
*/
public $emailErrorsSubject = 'MySQL ERROR ON SERVER: %s';
/** Log Date Format (Default: Y-m-d H:i:s)
* @var string
*/
public $dateFormat = 'Y-m-d H:i:s';
/** Log File Path (Default: log-mysql.txt)
* @var string
*/
public $logFilePath = 'log-mysql.txt';
/** Reserved words for array to ( insert / update )
* @var array
*/
public $reserved = array('null', 'now()', 'current_timestamp', 'curtime()', 'localtime()', 'localtime', 'utc_date()', 'utc_time()', 'utc_timestamp()');
/** Start of MySQL statement for array to ( insert / update )
* @var string
*/
public $statementStart = 'sql::';
/** REGEX
* @var array
*/
private $REGEX = array('LIMIT' => '/limit[\s]+([\d]+[\s]*,[\s]*[\d]+[\s]*|[\d]+[\s]*)$/i', 'COLUMN' => '/^[a-z0-9_\-\s]+$/i');
/** Use MySQL SELECT ... INTO OUTFILE (Default: TRUE)
* @var boolean
*/
private $attachment = FALSE;
/** Use MySQL SELECT ... INTO OUTFILE (Default: TRUE)
* @var boolean
*/
public $mysqlOutFile = TRUE;
/** Singleton declaration
* @param string $server - MySQL Host name
* @param string $username - MySQL User
* @param string $password - MySQL Password
* @param string $database - MySQL Database
* @return - singleton instance
*/
public static function getInstance($server = NULL, $username = NULL, $password = NULL, $database = NULL) {
$md5 = md5(implode('|', array($server, $username, $password, $database)));
if (empty(self::$instance[$md5])) {
self::$instance[$md5] = new MySQL_wrapper($server, $username, $password, $database);
}
return self::$instance[$md5];
}
/** Protected constructor to prevent creating a new instance of the MySQL_wrapper via the `new` operator from outside of this class.
* @param string $server - MySQL Host name
* @param string $username - MySQL User
* @param string $password - MySQL Password
* @param string $database - MySQL Database
*/
protected function __construct($server = NULL, $username = NULL, $password = NULL, $database = NULL) {
$this->server = $server;
$this->username = $username;
$this->password = $password;
$this->database = $database;
}
/** Private clone method to prevent cloning of the MySQL_wrapper instance.
* @return void
*/
private function __clone() {
// ... void
}
/** Private unserialize method to prevent unserializing of the MySQL_wrapper instance.
* @return void
*/
private function __wakeup() {
// ... void
}
/** Call function
* @param string $func - function name
* @param string $params - MySQL User
* @param return
*/
public function call($func) {
// Functions without link parameter
$l = array('free_result', 'fetch_assoc', 'num_rows', 'num_fields', 'fetch_object', 'fetch_field_direct');
// Add return value
$r = array('free_result' => TRUE);
// Params
if (func_num_args() >= 2) {
$params = func_get_args();
unset($params[0]);
if ($this->extension == 'mysql') {
$params = in_array($func, $l) ? $params : array_merge($params, array($this->link));
} elseif ($this->extension == 'mysqli') {
$params = in_array($func, $l) ? $params : array_merge(array($this->link), $params);
}
} else {
$params = array($this->link);
}
// Return
if (in_array($func, array_keys($r)) && $this->extension == 'mysqli') {
call_user_func_array("{$this->extension}_{$func}", $params);
return $r[$func];
} else {
return call_user_func_array("{$this->extension}_{$func}", $params);
}
}
/** Connect
* @param string $server - MySQL Host name
* @param string $username - MySQL User
* @param string $password - MySQL Password
* @param string $database - MySQL Database
* @param boolean $newLink - New link
* @return boolean
*/
public function connect($server = NULL, $username = NULL, $password = NULL, $database = NULL, $newLink = FALSE) {
if ($server !== NULL && $username !== NULL && $database !== NULL) {
$this->server = $server;
$this->username = $username;
$this->password = $password;
$this->database = $database;
}
if ($this->extension == 'mysql') {
$this->link = @mysql_connect($this->server, $this->username, $this->password, $newLink) or $this->error("Couldn't connect to server: {$this->server}.");
if ($this->link) {
$this->setCharset();
@mysql_select_db($this->database, $this->link) or $this->error("Could not open database: {$this->database}.");
return TRUE;
} else {
return FALSE;
}
} elseif ($this->extension == 'mysqli') {
$this->link = mysqli_connect($this->server, $this->username, $this->password, $this->database);
// Check connection
if (mysqli_connect_errno($this->link)) {
$this->error("Failed to connect to MySQL: " . mysqli_connect_error());
return FALSE;
} else {
$this->setCharset();
return TRUE;
}
}
}
/** Sets the default charset for the current connection.
* @param string $charset - A valid charset name ( If not defined $this->charset whill be used)
* @return boolean
*/
public function setCharset($charset = NULL) {
$this->charset = $charset ? $charset : $this->charset;
$this->call('set_charset', $this->charset) or $this->error("Error loading character set {$this->charset}");
}
/** Checks whether or not the connection to the server is working.
* @param void
* @return boolean
*/
public function ping() {
return $this->call('ping');
}
/** Reconnect to the server.
* @param void
* @return boolean
*/
public function reconnect() {
$this->close();
return $this->connect();
}
/** Close Connection on the server that's associated with the specified link (identifier).
* @param void
*/
public function close() {
$this->call('close') or $this->error("Connection close failed.");
}
/** Execute a unique query (multiple queries are not supported) to the currently active database on the server that's associated with the specified link (identifier).
* @param string $sql - MySQL Query
* @param mixed - array of params to be escaped or one param
* @param mixed - param
* @param mixed - ...
* @return resource or false
*/
public function query($sql) {
if (func_num_args() >= 2) {
$l = func_get_args();
unset($l[0]);
$p = array();
if (is_array($l[1])) {
$l = $l[1];
}
foreach ($l as $k => $v) {
$p['search'][] = "@{$k}";
if (preg_match('/^' . preg_quote($this->statementStart) . '/i', $v)) {
$p['replace'][] = preg_replace('/^' . preg_quote($this->statementStart) . '/i', NULL, $v);
} else {
$p['replace'][] = $this->escape($v);
}
}
$sql = str_replace($p['search'], $p['replace'], $sql);
unset($l, $p);
}
if ($this->logQueries) {
$start = $this->getMicrotime();
}
$this->prevQuery = $sql;
$this->query = $this->call('query', $sql) or $this->error("Query fail: " . $sql);
$this->affected = $this->call('affected_rows');
if ($this->query && $this->logQueries) {
$this->log('QUERY', "EXEC -> " . number_format($this->getMicrotime() - $start, 8) . " -> " . $sql);
}
return $this->query ? $this->query : FALSE;
}
/** Get number of fields in result
* @param resource $query - MySQL Query Result
* @return integer - Retrieves the number of fields from a query
*/
public function numFields($query = 0) {
return intval($this->call('num_fields', $query ? $query : $this->query));
}
/** Get number of rows in result
* @param resource $query - MySQL Query Result
* @return integer - Retrieves the number of rows from a result set
*/
public function numRows($query = 0) {
return intval($this->call('num_rows', $query ? $query : $this->query));
}
/** Get number of rows in result
* @param resource $query - Result resource that is being evaluated ( Query Result )
* @return bool
*/
public function freeResult($query = 0) {
$this->call('free_result', $query ? $query : $this->query) or $this->error("Result could not be freed.");
}
/** Get Columns names into array
* @param string $table - Table name
* @return array $columns - Names of Fields
*/
public function getColumns($table) {
$q = $this->query("SHOW COLUMNS FROM `{$table}`;");
$columns = array();
while ($row = $this->fetchArray($q)) $columns[] = $row['Field'];
$this->freeResult($q);
return $columns;
}
/** Returns an associative array that corresponds to the fetched row and moves the internal data pointer ahead.
* @param resource $query - MySQL Query Result
* @return array or false
*/
public function fetchArray($query = 0) {
$this->query = $query ? $query : $this->query;
if ($this->query) {
return $this->call('fetch_assoc', $this->query);
} else {
$this->error("Invalid Query ID: {$this->query}. Records could not be fetched.");
return FALSE;
}
}
/** Returns array with fetched associative rows.
* @param string $sql - MySQL Query
* @param string $fetchFirst - Fetch only first row
* @return array
*/
public function fetchQueryToArray($sql, $fetchFirst = FALSE) {
if ($fetchFirst) {
$sql = rtrim(trim($sql), ';');
$sql = preg_replace($this->REGEX['LIMIT'], 'LIMIT 1;', $sql);
if (substr($sql, -strlen('LIMIT 1;')) !== 'LIMIT 1;') {
$sql .= ' LIMIT 1;';
}
}
$q = $this->query($sql);
$array = array();
if ($fetchFirst && $this->affected > 0) {
$array = $this->fetchArray($q);
} else {
while ($row = $this->fetchArray($q)) {
$array[] = $row;
}
}
$this->freeResult($q);
return $array;
}
/** Escapes special characters in a string for use in an SQL statement.
* @param string $string - unescaped string
* @return string
*/
public function escape($string) {
if (!version_compare(PHP_VERSION, '5.4.0') >= 0) {
$string = get_magic_quotes_gpc() ? stripslashes($string) : $string;
}
return $this->call('real_escape_string', $string);
}
/** Creates an sql string from an associate array
* @param string $table - Table name
* @param array $data - Data array Eg. $data['column'] = 'val';
* @param string $where - MySQL WHERE Clause
* @param integer $limit - Limit offset
* @return number of updated rows or false
*/
public function arrayToUpdate($table, $data, $where = NULL, $limit = 0) {
if (is_array(reset($data))) {
$cols = array();
foreach (array_keys($data[0]) as $c) {
$cols[] = "`{$c}` = VALUES(`{$c}`)";
}
return $this->arrayToInsert($table, $data, TRUE, implode(', ', $cols));
}
$fields = array();
foreach ($data as $key => $val) {
if (in_array(strtolower($val), $this->reserved)) {
$fields[] = "`{$key}` = " . strtoupper($val);
} elseif (preg_match('/^' . preg_quote($this->statementStart) . '/i', $val)) {
$fields[] = "`{$key}` = " . preg_replace('/^' . preg_quote($this->statementStart) . '/i', NULL, $val);
} else {
$fields[] = "`{$key}` = '{$this->escape($val)}'";
}
}
return (!empty($fields)) ? $this->query("UPDATE `{$table}` SET " . implode(', ', $fields) . ($where ? " WHERE {$where}" : NULL) . ($limit ? " LIMIT {$limit}" : NULL) . ";") ? $this->affected : FALSE : FALSE;
}
/** Creates an sql string from an associate array
* @param string $table - Table name
* @param array $data - Data array Eg. array('column' => 'val') or multirows array(array('column' => 'val'), array('column' => 'val2'))
* @param boolean $ingore - INSERT IGNORE (row won't actually be inserted if it results in a duplicate key)
* @param string $duplicateupdate - ON DUPLICATE KEY UPDATE (The ON DUPLICATE KEY UPDATE clause can contain multiple column assignments, separated by commas.)
* @return insert id or false
*/
public function arrayToInsert($table, $data, $ignore = FALSE, $duplicateupdate = NULL) {
$multirow = is_array(reset($data));
if ($multirow) {
$c = implode('`, `', array_keys($data[0]));
$dat = array();
foreach ($data as &$val) {
foreach ($val as &$v) {
if (in_array(strtolower($v), $this->reserved)) {
$v = strtoupper($v);
} elseif (preg_match('/^' . preg_quote($this->statementStart) . '/i', $v)) {
$v = preg_replace('/^' . preg_quote($this->statementStart) . '/i', NULL, $v);
} else {
$v = "'{$this->escape($v)}'";
}
}
$dat[] = "( " . implode(', ', $val) . " )";
}
$v = implode(', ', $dat);
} else {
$c = implode('`, `', array_keys($data));
foreach ($data as &$val) {
if (in_array(strtolower($val), $this->reserved)) {
$val = strtoupper($val);
} elseif (preg_match('/^' . preg_quote($this->statementStart) . '/i', $val)) {
$val = preg_replace('/^' . preg_quote($this->statementStart) . '/i', NULL, $val);
} else {
$val = "'{$this->escape($val)}'";
}
}
$v = "( " . implode(', ', $data) . " )";
}
return (!empty($data)) ? $this->query("INSERT" . ($ignore ? " IGNORE" : NULL) . " INTO `{$table}` ( `{$c}` ) VALUES {$v}" . ($duplicateupdate ? " ON DUPLICATE KEY UPDATE {$duplicateupdate}" : NULL) . ";") ? ($multirow ? TRUE : $this->insertID()) : FALSE : FALSE;
}
/** Imports CSV data to Table with possibility to update rows while import.
* @param string $file - CSV File path
* @param string $table - Table name
* @param string $delimiter - COLUMNS TERMINATED BY (Default: ',')
* @param string $enclosure - OPTIONALLY ENCLOSED BY (Default: '"')
* @param string $escape - ESCAPED BY (Default: '\')
* @param integer $ignore - Number of ignored rows (Default: 1)
* @param array $update - If row fields needed to be updated eg date format or increment (SQL format only @FIELD is variable with content of that field in CSV row) $update = array('SOME_DATE' => 'STR_TO_DATE(@SOME_DATE, "%d/%m/%Y")', 'SOME_INCREMENT' => '@SOME_INCREMENT + 1')
* @param string $getColumnsFrom - Get Columns Names from (file or table) - this is important if there is update while inserting (Default: file)
* @param string $newLine - New line delimiter (Default: auto detection use \n, \r\n ...)
* @return number of inserted rows or false
*/
public function importCSV2Table($file, $table, $delimiter = ',', $enclosure = '"', $escape = '\\', $ignore = 1, $update = array(), $getColumnsFrom = 'file', $newLine = FALSE) {
$file = file_exists($file) ? realpath($file) : NULL;
$file = realpath($file);
if (!file_exists($file)) {
$this->error('ERROR', "Import CSV to Table - File: {$file} doesn't exist.");
return FALSE;
}
if ($newLine === FALSE) {
$newLine = $this->detectEOL($file);
}
$sql = "LOAD DATA LOCAL INFILE '{$this->escape($file)}' " .
"INTO TABLE `{$table}` " .
"COLUMNS TERMINATED BY '{$delimiter}' " .
"OPTIONALLY ENCLOSED BY '{$enclosure}' " .
"ESCAPED BY '{$this->escape($escape)}' " .
"LINES TERMINATED BY '{$newLine}' " .
($ignore ? "IGNORE {$ignore} LINES" : NULL);
if (!empty($update)) {
if ($getColumnsFrom == 'table') {
$columns = $this->getColumns($table);
} elseif ($getColumnsFrom == 'file') {
$f = fopen($file, 'r');
$line = fgets($f);
fclose($f);
$columns = explode($delimiter, str_replace($enclosure, NULL, trim($line)));
foreach ($columns as $c) {
preg_match($this->REGEX['COLUMN'], $c) or $this->error("ERROR", "Invalid Column Name: {$c} in CSV file: {$file}. Data can not be loaded into table: {$table}.");
}
}
foreach ($columns as &$c) {
$c = (in_array($c, array_keys($update))) ? '@' . $c : "`{$c}`";
}
$sql .= " (" . implode(', ', $columns) . ") ";
$fields = array();
foreach ($update as $key => $val) $fields[] = "`{$key}` = {$val}";
$sql .= "SET " . implode(', ', $fields);
}
$sql .= ";";
return ($this->query($sql)) ? $this->affected : FALSE;
}
/** Imports (ON DUPLICATE KEY UPDATE) CSV data in Table with possibility to update rows while import.
* @param string $file - CSV File path
* @param string $table - Table name
* @param string $delimiter - COLUMNS TERMINATED BY (Default: ',')
* @param string $enclosure - OPTIONALLY ENCLOSED BY (Default: '"')
* @param string $escape - ESCAPED BY (Default: '\')
* @param integer $ignore - Number of ignored rows (Default: 1)
* @param array $update - If row fields needed to be updated eg date format or increment (SQL format only @FIELD is variable with content of that field in CSV row) $update = array('SOME_DATE' => 'STR_TO_DATE(@SOME_DATE, "%d/%m/%Y")', 'SOME_INCREMENT' => '@SOME_INCREMENT + 1')
* @param string $getColumnsFrom - Get Columns Names from (file or table) - this is important if there is update while inserting (Default: file)
* @param string $newLine - New line delimiter (Default: auto detection use \n, \r\n ...)
* @return number of inserted rows or false
*/
public function importUpdateCSV2Table($file, $table, $delimiter = ',', $enclosure = '"', $escape = '\\', $ignore = 1, $update = array(), $getColumnsFrom = 'file', $newLine = FALSE) {
$tmp_name = "{$table}_tmp_" . rand();
// Create tmp table
$this->query("CREATE TEMPORARY TABLE `{$tmp_name}` LIKE `{$table}`;");
// Remove auto_increment if exists
$change = array();
$this->query("SHOW COLUMNS FROM `{$tmp_name}` WHERE `Key` NOT LIKE '';");
if ($this->affected > 0) {
while ($row = $this->fetchArray()) {
$change[$row['Field']] = "CHANGE `{$row['Field']}` `{$row['Field']}` {$row['Type']}";
}
$this->freeResult();
}
if ($getColumnsFrom == 'file') {
// Get first line of file
$f = fopen($file, 'r');
$line = fgets($f);
fclose($f);
$columns = explode($delimiter, str_replace($enclosure, NULL, trim($line)));
foreach ($columns as $c) {
preg_match($this->REGEX['COLUMN'], $c) or $this->error("ERROR", "Invalid Column Name: {$c} in CSV file: {$file}. Data can not be loaded into table: {$table}.");
}
// Drop columns that are not in CSV file
foreach ($this->getColumns($table) as $c) {
if (!in_array($c, $columns, TRUE)) {
$change[$c] = "DROP COLUMN `{$c}`";
}
}
}
if (count($change) > 0) {
$this->query("ALTER TABLE `{$tmp_name}` " . implode(', ', $change) . ";");
}
// Import to tmp
$this->importCSV2Table($file, $tmp_name, $delimiter, $enclosure, $escape, $ignore, $update, $getColumnsFrom, $newLine);
// Copy data
$cols = array();
if ($getColumnsFrom == 'table') {
$columns = $this->getColumns($tmp_name);
}
foreach ($columns as $c) {
$cols[] = "`{$c}` = VALUES(`{$c}`)";
}
$this->query("INSERT INTO `{$table}` ( `" . implode('`, `', $columns) . "` ) SELECT * FROM `{$tmp_name}` ON DUPLICATE KEY UPDATE " . implode(', ', $cols) . ";");
$i = $this->affected;
// Drop tmp table
$this->query("DROP TEMPORARY TABLE `{$tmp_name}`;");
return $i;
}
/** Export table data to CSV file.
* @param string $table - Table name
* @param string $file - CSV File path
* @param mixed $columns - SQL ( * or column names or array with column names)
* @param string $where - MySQL WHERE Clause
* @param integer $limit - Limit offset
* @param string $delimiter - COLUMNS TERMINATED BY (Default: ',')
* @param string $enclosure - OPTIONALLY ENCLOSED BY (Default: '"')
* @param string $escape - ESCAPED BY (Default: '\')
* @param string $newLine - New line delimiter (Default: \n)
* @param boolean $showColumns - Columns names in first line
* @return - File path
*/
public function exportTable2CSV($table, $file, $columns = '*', $where = NULL, $limit = 0, $delimiter = ',', $enclosure = '"', $escape = '\\', $newLine = '\n', $showColumns = TRUE) {
// Without OUTFILE or as attachment
if ($this->attachment || !$this->mysqlOutFile) {
return $this->query2CSV("SELECT * FROM `$table`" . ($where ? " WHERE {$where}" : NULL) . ($limit ? " LIMIT {$limit}" : NULL), $file, $delimiter, $enclosure, $escape, $newLine, $showColumns);
}
$fh = fopen($file, 'w') or $this->error("ERROR", "Can't create CSV file: {$file}");
if (!$fh) {
return FALSE;
}
fclose($fh);
$file = realpath($file);
unlink($file);
// Put columns into array if not *
if ($columns != '*' && !is_array($columns)) {
$stringColumns = $columns;
$columns = array();
foreach (explode(',', $stringColumns) as $c) {
$columns[] = trim(str_replace(array("'", "`", "\""), NULL, $c));
}
}
// Prepare SQL for column names
if ($showColumns) {
$tableColumnsArr = array();
if ($columns == '*') {
foreach ($this->getColumns($table) as $c)
$tableColumnsArr[] = "'{$c}' AS `{$c}`";
} elseif (is_array($columns)) {
foreach ($columns as $c)
$tableColumnsArr[] = "'{$c}' AS `{$c}`";
}
$columnsSQL = "SELECT " . implode(', ', $tableColumnsArr);
}
$sql = "SELECT " . (is_array($columns) ? '`' . implode('`, `', $columns) . '`' : $columns) . " FROM `{$table}`" . ($where ? " WHERE {$where}" : NULL) . ($limit ? " LIMIT {$limit}" : NULL);
$sql = (($showColumns) ? "SELECT * FROM ( ( " . $columnsSQL . " ) UNION ALL ( {$sql} ) ) `a` " : "{$sql} ") .
"INTO OUTFILE '{$this->escape($file)}' " .
"FIELDS TERMINATED BY '{$delimiter}' " .
"OPTIONALLY ENCLOSED BY '{$enclosure}' " .
"ESCAPED BY '{$this->escape($escape)}' " .
"LINES TERMINATED BY '{$newLine}';";
return ($this->query($sql)) ? $file : FALSE;
}
/** Set attachment var and return object.
* @param void
* @return - obj
*/
function attachment() {
$this->attachment = TRUE;
return $this;
}
/** Export query to CSV file.
* @param string $sql - MySQL Query
* @param string $file - CSV File path
* @param string $delimiter - COLUMNS TERMINATED BY (Default: ',')
* @param string $enclosure - OPTIONALLY ENCLOSED BY (Default: '"')
* @param string $escape - ESCAPED BY (Default: '\')
* @param string $newLine - New line delimiter (Default: \n)
* @param boolean $showColumns - Columns names in first line
* @return - File path
*/
public function query2CSV($sql, $file, $delimiter = ',', $enclosure = '"', $escape = '\\', $newLine = '\n', $showColumns = TRUE) {
// Without OUTFILE or as attachment
if ($this->attachment || !$this->mysqlOutFile) {
// Do query
$this->query($sql);
if ($this->affected > 0) {
$fh = fopen($this->attachment ? 'php://output' : $file, 'w') or $this->error("ERROR", "Can't create CSV file: {$file}");
if ($fh) {
if ($this->attachment) {
// Send response headers
header('Content-Type: text/csv');
header('Content-Disposition: attachment; filename="' . basename($file));
header('Pragma: no-cache');
header('Expires: 0');
$this->attachment = FALSE;
}
$header = FALSE;
while ($row = $this->fetchArray()) {
// CSV header / field names
if ($showColumns && !$header) {
fputcsv($fh, array_keys($row), $delimiter, $enclosure);
$header = TRUE;
}
fputcsv($fh, array_values($row), $delimiter, $enclosure);
}
fclose($fh);
return $this->affected;
} else {
$this->attachment = FALSE;
return FALSE;
}
} else {
$this->attachment = FALSE;
// No records
return 0;
}
}
// Check if location is writable and unlink
$fh = fopen($file, 'w') or $this->error("ERROR", "Can't create CSV file: {$file}");
if (!$fh) {
return FALSE;
}
fclose($fh);
$file = realpath($file);
unlink($file);
// Remove ; from end of query
$sql = trim(rtrim(trim($sql), ';'));
// Prepare SQL for column names
if ($showColumns) {
$r = $this->query((preg_match($this->REGEX['LIMIT'], $sql)) ? preg_replace($this->REGEX['LIMIT'], 'LIMIT 1;', $sql) : $sql . ' LIMIT 1;');
if ($r !== FALSE && $this->affected > 0) {
$columns = $this->fetchArray($r);
$this->freeResult($r);
$tableColumnsArr = array();
foreach ($columns as $k => $v) {
$tableColumnsArr[] = "'{$k}' AS `{$k}`";
}
$columnsSQL = "SELECT " . implode(', ', $tableColumnsArr);
} else {
// No results for this query
return 0;
}
}
// Final query
$sql = (($showColumns && isset($columnsSQL)) ? "SELECT * FROM ( ( " . $columnsSQL . " ) UNION ALL ( {$sql} ) ) `a` " : "{$sql} ") .
"INTO OUTFILE '{$this->escape($file)}' " .
"FIELDS TERMINATED BY '{$delimiter}' " .
"OPTIONALLY ENCLOSED BY '{$enclosure}' " .
"ESCAPED BY '{$this->escape($escape)}' " .
"LINES TERMINATED BY '{$newLine}';";
return ($this->query($sql)) ? $file : FALSE;
}
/** Export query to XML file or return as XML string
* @param string $query - mysql query
* @param string $rootElementName - root element name
* @param string $childElementName - child element name
* @return string - XML
*/
public function query2XML($query, $rootElementName, $childElementName, $file = NULL) {
// Save to file or attachment
if ($this->attachment || !empty($file)) { //echo $file; exit;
$fh = fopen($this->attachment ? 'php://output' : $file, 'w') or $this->error("ERROR", "Can't create XML file: {$file}");
if (!$fh) {
return FALSE;
} elseif ($this->attachment) {
// Send response headers
header('Content-Type: text/xml');
header('Content-Disposition: attachment; filename="' . basename($file));
header('Pragma: no-cache');
header('Expires: 0');
$this->attachment = FALSE;
} else {
$file = realpath($file);
}
$saveToFile = TRUE;
} else {
$saveToFile = FALSE;
}
// Do query
$r = $this->query($query);
// XML header
if ($saveToFile) {
fputs($fh, "<?xml version=\"1.0\" encoding=\"" . strtoupper($this->charset) . "\" ?>" . PHP_EOL . "<{$rootElementName}>" . PHP_EOL);
} else {
$xml = "<?xml version=\"1.0\" encoding=\"" . strtoupper($this->charset) . "\" ?>" . PHP_EOL;
$xml .= "<{$rootElementName}>" . PHP_EOL;
}
// Query rows
while ($row = $this->call('fetch_object', $r)) {
// Create the first child element
$record = "\t<{$childElementName}>" . PHP_EOL;
for ($i = 0; $i < $this->call('num_fields', $r); $i++) {
// Different methods of getting field name for mysql and mysqli
if ($this->extension == 'mysql') {
$fieldName = $this->call('field_name', $r, $i);
} elseif ($this->extension == 'mysqli') {
$colObj = $this->call('fetch_field_direct', $r, $i);
$fieldName = $colObj->name;
}
// The child will take the name of the result column name
$record .= "\t\t<{$fieldName}>";
// Set empty columns with NULL and escape XML entities
if (!empty($row->$fieldName)) {
$record .= htmlspecialchars($row->$fieldName, ENT_XML1);
} else {
$record .= NULL;
}
$record .= "</{$fieldName}>" . PHP_EOL;
}
$record .= "\t</{$childElementName}>" . PHP_EOL;
if ($saveToFile) {
fputs($fh, $record);
} else {
$xml .= $record;
}
}
// Output
if ($saveToFile) {
fputs($fh, "</{$rootElementName}>" . PHP_EOL);
fclose($fh);
return TRUE;
} else {
$xml .= "</{$rootElementName}>" . PHP_EOL;
return $xml;
}
}
/** Create table from CSV file and imports CSV data to Table with possibility to update rows while import.
* @param string $file - CSV File path
* @param string $table - Table name
* @param string $delimiter - COLUMNS TERMINATED BY (Default: ',')
* @param string $enclosure - OPTIONALLY ENCLOSED BY (Default: '"')
* @param string $escape - ESCAPED BY (Default: '\')
* @param integer $ignore - Number of ignored rows (Default: 1)
* @param array $update - If row fields needed to be updated eg date format or increment (SQL format only @FIELD is variable with content of that field in CSV row) $update = array('SOME_DATE' => 'STR_TO_DATE(@SOME_DATE, "%d/%m/%Y")', 'SOME_INCREMENT' => '@SOME_INCREMENT + 1')
* @param string $getColumnsFrom - Get Columns Names from (file or generate) - this is important if there is update while inserting (Default: file)
* @param string $newLine - New line delimiter (Default: auto detection use \n, \r\n ...)
* @return number of inserted rows or false
*/
public function createTableFromCSV($file, $table, $delimiter = ',', $enclosure = '"', $escape = '\\', $ignore = 1, $update = array(), $getColumnsFrom = 'file', $newLine = FALSE) {
$file = file_exists($file) ? realpath($file) : NULL;
if ($file === NULL) {
$this->error('ERROR', "Create Table form CSV - File: {$file} doesn't exist.");
return FALSE;
} else {
$f = fopen($file, 'r');
$line = fgets($f);
fclose($f);
$data = explode($delimiter, str_replace($enclosure, NULL, trim($line)));
$columns = array();
$i = 0;
foreach ($data as $c) {
if ($getColumnsFrom == 'generate') {
$c = 'column_' . $i++;
}
if (preg_match($this->REGEX['COLUMN'], $c)) {
$columns[] = "`{$c}` BLOB NULL";
} else {
$this->error('ERROR', "Invalid column name: {$c} in file: {$file}");
return FALSE;
}
}
$this->query("CREATE TABLE `{$table}` ( " . implode(', ', $columns) . " ) ENGINE=InnoDB DEFAULT CHARSET={$this->charset};");
if ($this->importCSV2Table($file, $table, $delimiter, $enclosure, $escape, $ignore, $update, ($getColumnsFrom == 'generate') ? 'table' : 'file', $newLine) > 0) {
$columns = $this->fetchQueryToArray("SELECT * FROM `{$table}` PROCEDURE ANALYSE ( 10, 30 );", FALSE);
$change = array();
foreach ($columns as $c) {
$c['Field_name'] = implode('`.`', explode('.', $c['Field_name']));
$change[] = "CHANGE `{$c['Field_name']}` `{$c['Field_name']}` {$c['Optimal_fieldtype']}";
}
$this->query("ALTER TABLE `{$table}` " . implode(', ', $change) . ";");
}
}
}
/** Rename table(s)
* @param array $table - Names of the tables eg -> array('old_table' => 'new_table') or array('table1' => 'tmp_table', 'table2' => 'table1', 'tmp_table' => 'table1')
* @return resource or false
*/
public function renameTable($table) {
$rename = array();
foreach ($table as $old => $new) {
$rename[] = "`{$old}` TO `{$new}`";
}
return $this->query("RENAME TABLE " . implode(', ', $rename) . ";");
}
/** Copy table structure or structure and data.
* @param string $table - Table name
* @param string $new_table - New table name
* @param boolean $data - Copy table data
* @return resource or false
*/
public function copyTable($table, $new_table, $data = TRUE) {
$r = $this->query("CREATE TABLE `{$new_table}` LIKE `{$table}`;");
return ($r && $data) ? $this->query("INSERT INTO `{$new_table}` SELECT * FROM `{$table}`;") : $r;
}
/** Truncate table
* @param string $table - Table name
* @return resource or false
*/
public function truncateTable($table) {
return $this->query("TRUNCATE TABLE `{$table}`;");
}
/** Drop table(s)
* @param array $table - Names of the tables eg -> array('table1', 'table2')
* @param boolean $if_exists - Use IF EXISTS to prevent an error from occurring for tables that do not exist.
* @return resource or false
*/
public function dropTable($table, $if_exists = TRUE) {
return $this->query("DROP TABLE " . ($if_exists ? "IF EXISTS " : NULL) . "`" . (is_array($table) ? implode('`, `', $table) : $table) . "`;");
}
/** Data Base size in B / KB / MB / GB / TB
* @param string $sizeIn - Size in B / KB / MB / GB / TB
* @param integer $round - Round on decimals
* @return - Size in B / KB / MB / GB / TB
*/
public function getDataBaseSize($sizeIn = 'MB', $round = 2) {
$r = $this->query("SELECT ROUND( SUM( `data_length` + `index_length` ) " . str_repeat('/ 1024 ', array_search(strtoupper($sizeIn), array('B', 'KB', 'MB', 'GB', 'TB'))) . ", {$round} ) `size` FROM `information_schema`.`TABLES` WHERE `table_schema` LIKE '{$this->database}' GROUP BY `table_schema`;");
if ($r !== FALSE) {
$row = $this->fetchArray($r);
$this->freeResult($r);
return $row['size'];
} else {
return FALSE;
}
}
/** Retrieves the ID generated for an AUTO_INCREMENT column by the previous query.
* @param void
* @return integer
*/
public function insertID() {
return $this->call('insert_id');
}
/** Retrieves the number of rows from table based on certain conditions.
* @param string $table - Table name
* @param string $where - WHERE Clause
* @return integer or false
*/
public function countRows($table, $where = NULL) {
$r = $this->query("SELECT COUNT( * ) AS count FROM `{$table}` " . ($where ? " WHERE {$where}" : NULL) . ";");
if ($r !== FALSE) {
$row = $this->fetchArray($r);
$this->freeResult($r);