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class.krumo.php
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class.krumo.php
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<?php
/**
* Krumo: Structured information display solution
*
* Krumo is a debugging tool (PHP5 only), which displays structured information
* about any PHP variable. It is a nice replacement for print_r() or var_dump()
* which are used by a lot of PHP developers.
*
* @original author Kaloyan K. Tsvetkov <[email protected]>
* @author Matthew J. Mucklo <[email protected]>
* @author Scott Baker <[email protected]>
* @author various others - see composer.json, and contributors tab on github.com
* @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License Version 2.1
*
* https://github.com/mmucklo/krumo
*/
//////////////////////////////////////////////////////////////////////////////
if (!defined('KRUMO_RETURN')) {
define('KRUMO_RETURN', '158bafa5-b505-4661-9904-46504e00a5bb');
}
if (!defined('KRUMO_EXPAND_ALL')) {
define('KRUMO_EXPAND_ALL', '381019f0-fe97-4012-bb58-19f0e479665a');
}
if (!defined('KRUMO_SORT')) {
define('KRUMO_SORT','fefe1734-aa1b-4b1d-80e3-b8fddd45731a');
}
if (!defined('KRUMO_NO_SORT')) {
define('KRUMO_NO_SORT','a095a471-7734-44a4-90f1-0e8bac46dd0e');
}
//////////////////////////////////////////////////////////////////////////////
/**
* Krumo API
*
* This class stores the Krumo API for rendering and
* displaying the structured information it is reporting
*
* @package Krumo
*/
class Krumo
{
const VERSION = '0.6.1';
/**
* Return Krumo version
*
* @return string
*/
public static function version()
{
return Krumo::VERSION;
}
protected static function getCharset()
{
return self::_config('display', 'default_charset', 'UTF-8');
}
/**
* Prints a debug backtrace
*
*/
public static function backtrace()
{
// disabled ?
if (!static::_debug()) {
return false;
}
// render it
return static::dump(debug_backtrace());
}
/**
* Prints a list of all currently declared classes.
*
*/
public static function classes()
{
// disabled ?
if (!static::_debug()) {
return false;
}
static::heading("This is a list of all currently declared classes.");
return static::dump(get_declared_classes());
}
/**
* Prints a list of all currently declared interfaces (PHP5 only).
*
*/
public static function interfaces()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all currently declared interfaces.");
return static::dump(get_declared_interfaces());
}
/**
* Prints a list of all currently included (or required) files.
*
*/
public static function includes()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all currently included (or required) files.");
return static::dump(get_included_files());
}
/**
* Prints a list of all currently declared functions.
*
*/
public static function functions()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all currently declared functions.");
return static::dump(get_defined_functions());
}
/**
* Prints a list of all currently declared constants.
*
*/
public static function defines()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all currently declared constants (defines).");
return static::dump(get_defined_constants());
}
/**
* Prints a list of all currently loaded PHP extensions.
*
*/
public static function extensions()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all currently loaded PHP extensions.");
return static::dump(get_loaded_extensions());
}
/**
* Prints a list of all HTTP request headers.
*
*/
public static function headers()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all HTTP request headers.");
return static::dump(getAllHeaders());
}
/**
* Prints a list of the configuration settings read from <i>php.ini</i>
*
*/
public static function phpini()
{
// disabled
if (!static::_debug()) {
return false;
}
if (!is_readable(get_cfg_var('cfg_file_path'))) {
return false;
}
// render it
static::heading("This is a list of the configuration settings read from ", get_cfg_var('cfg_file_path'), ".");
return static::dump(parse_ini_file(get_cfg_var('cfg_file_path'), true));
}
/**
* Prints a list of all your configuration settings.
*
*/
public static function conf()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all your configuration settings.");
return static::dump(ini_get_all());
}
/**
* Prints a list of the specified directories under your <i>include_path</i> option.
*
*/
public static function path()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of the specified directories under your ", "include_path", " option.");
return static::dump(explode(PATH_SEPARATOR, ini_get('include_path')));
}
/**
* Prints a list of all the values from the <i>$_REQUEST</i> array.
*
*/
public static function request()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_REQUEST", " array.");
return static::dump($_REQUEST);
}
/**
* Prints a list of all the values from the <i>$_GET</i> array.
*
*/
public static function get()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_GET", " array.");
return static::dump($_GET);
}
/**
* Prints a list of all the values from the <i>$_POST</i> array.
*
*/
public static function post()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_POST", " array.");
return static::dump($_POST);
}
/**
* Prints a list of all the values from the <i>$_SERVER</i> array.
*
*/
public static function server()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_SERVER", " array.");
return static::dump($_SERVER);
}
/**
* Prints a list of all the values from the <i>$_COOKIE</i> array.
*
*/
public static function cookie()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_COOKIE", " array.");
return static::dump($_COOKIE);
}
/**
* Prints a list of all the values from the <i>$_ENV</i> array.
*
*/
public static function env()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_ENV", " array.");
return static::dump($_ENV);
}
/**
* Prints a list of all the values from the <i>$_SESSION</i> array.
*
*/
public static function session()
{
// disabled
if (!static::_debug()) {
return false;
}
// render it
static::heading("This is a list of all the values from the ", "\$_SESSION", " array.");
return static::dump($_SESSION);
}
/**
* Prints a list of all the values from an INI file.
*
* @param string $ini_file
* @return bool
*/
public static function ini($ini_file)
{
// disabled
if (!static::_debug()) {
return false;
}
// read it
if (!$_ = @parse_ini_file($ini_file, 1)) {
return false;
}
// render it
if (realpath($ini_file)) {
$ini_file = realpath($ini_file);
}
static::heading("This is a list of all the values from the ", $ini_file, "INI file");
return static::dump($_);
}
protected static function heading($first, $code = '', $rest = '')
{
if (!static::isCli()) {
print "<div class=\"krumo-title\">";
}
print $first;
if ($code && !static::isCli()) {
print "<code><b>";
}
print $code;
if ($code && !static::isCli()) {
print "</code></b>";
}
print $rest;
if (!static::isCli()) {
print "</div>";
}
}
public static function htmlHeaders()
{
if (!headers_sent()) {
header("Content-Type: text/html");
// Print out a minimal page header
print "<!DOCTYPE html><html><head><meta charset=\"" . static::getCharset() . "\"></head><body>";
}
}
/**
* Dump information about a variable
*
* @param mixed $data,...
* @return bool
*/
public static function dump($data, $second = '')
{
if (static::isCli()) {
$args = func_get_args();
krumo::cli_dump($args);
return true;
}
// If we're capturing call dump() with just data and capture the output
if ($second === KRUMO_RETURN) {
ob_start();
static::dump($data);
$str = ob_get_clean();
return $str;
// If we were given expand all, set the global variable
} elseif ($second === KRUMO_EXPAND_ALL) {
static::$expand_all = true;
static::dump($data);
return true;
} elseif ($second === KRUMO_NO_SORT) {
self::$sort = false;
Krumo::dump($data);
return true;
} elseif ($second === KRUMO_SORT) {
self::$sort = true;
Krumo::dump($data);
return true;
}
$clearObjectRecursionProtection = false;
if (static::$objectRecursionProtection === null) {
static::$objectRecursionProtection = array();
$clearObjectRecursionProtection = true;
}
// disabled
if (!static::_debug()) {
return false;
}
// more arguments
if (func_num_args() > 1) {
$_ = func_get_args();
$result = true;
foreach ($_ as $d) {
$result = $result && static::dump($d);
}
return $result;
}
// find caller
$_ = debug_backtrace();
while ($d = array_pop($_)) {
$callback = static::$lineNumberTestCallback;
$function = strToLower($d['function']);
if (in_array($function, array("krumo","k","kd")) || (strToLower(@$d['class']) == 'krumo') || (is_callable($callback) && call_user_func($callback, $d))) {
break;
}
}
$showVersion = static::_config('display', 'show_version', true);
$showCallInfo = static::_config('display', 'show_call_info', true);
$krumoUrl = 'https://github.com/mmucklo/krumo';
//////////////////////
// Start HTML header//
//////////////////////
// This is not 100% legit because you may have more than one DOCTYPE line with this in place
//
// Without this, if krumo() is your FIRST line of HTML the browser enters quirks modea due
// to the lack of a DOCTYPE line. That may cause the rest of your HTML rendering to be "off"
print "<!DOCTYPE html>\n";
print "<div class=\"krumo-root\">\n";
print "\t<ul class=\"krumo-node krumo-first\">\n";
// The actual item itself
static::_dump($data);
if ($showVersion || $showCallInfo) {
print "\t\t<li class=\"krumo-footnote\">\n";
if ($showCallInfo && isset($d['file']) && $d['file']) {
print "<span class=\"krumo-call\" style=\"white-space:nowrap;\">";
print "Called from <strong><code>" . $d['file'] . "</code></strong>, ";
print "line <strong><code>" . $d['line'] . "</code></strong></span>";
}
if ($showVersion) {
$version = Krumo::VERSION;
print "<span class=\"krumo-version\" style=\"white-space:nowrap;\">\n";
print "<strong class=\"krumo-version-number\">Krumo version $version</strong> | <a href=\"$krumoUrl\" target=\"_blank\">$krumoUrl</a>\n";
print "</span>\n";
}
print "</li>";
}
print "</ul></div>\n";
print "<!-- Krumo - HTML -->\n\n";
// Output the CSS and JavaScript AFTER the HTML
static::_css();
////////////////////
// End HTML header//
////////////////////
// flee the hive
$_recursion_marker = static::_marker();
if ($hive =& static::_hive($dummy)) {
foreach ($hive as $i => $bee) {
if (is_object($bee)) {
if (($hash = spl_object_hash($bee)) && isset(static::$objectRecursionProtection[$hash])) {
unset(static::$objectRecursionProtection[$hash]);
}
} elseif (isset($hive[$i]->$_recursion_marker)) {
unset($hive[$i][$_recursion_marker]);
}
}
}
if ($clearObjectRecursionProtection) {
static::$objectRecursionProtection = null;
}
return true;
} // End of dump()
/**
* Return the dump information about a variable
* @param mixed $data,...
* @return string
*/
static function fetch($data)
{
// disabled ?
//
if (!self::_debug())
{
return false;
}
ob_start();
call_user_func_array(
array(get_called_class(), 'dump'),
func_get_args()
);
return ob_get_clean();
}
/**
* Configuration array.
*/
private static $_config = array();
/**
* Returns values from Krumo's configuration
*
* @param string $group
* @param string $name
* @param mixed $fallback
* @return mixed
*
*/
private static function _config($group, $name, $fallback=null)
{
$krumo_ini = __DIR__ . '/krumo.ini';
// The config isn't loaded yet
if (empty(static::$_config) && is_readable($krumo_ini)) {
static::$_config = (array) parse_ini_file($krumo_ini, true);
}
// exists
if (isset(static::$_config[$group][$name])) {
return static::$_config[$group][$name];
} else {
return $fallback;
}
}
public static function setConfig($config)
{
static::$_config = $config;
}
public static function setLineNumberTestCallback($callback)
{
static::$lineNumberTestCallback = $callback;
}
private static $lineNumberTestCallback = null;
/**
* Cascade configuration array
*
* By default, all nodes are collapsed.
*/
private static $_cascade = null;
/**
* Set a cascade configuration array.
*
* Each value in the array is the maximum number of entries that node can
* have before it is being collapsed. The last value is repeated for all
* further levels.
*
* Example:
* array(10,5,0) - Nodes from the first level are expanded if they have less
* than or equal to 10 child nodes. Nodes from the second level are ex-
* panded if they have less or equal to 5 nodes and all lower levels
* are collapsed.
*
* Note:
* To reset, simply call this function with no arguments.
*
* @param array $cascade Cascading information
*/
public static function cascade(array $cascade = null)
{
static::$_cascade = $cascade;
}
/**
* This allows you to uncollapse items programattically. Example:
*
* static::$expand_all = 1;
* krumo($my_array);
*/
public static $expand_all = 0;
public static $sort = null;
/**
* Determines if a given node will be collapsed or not.
* @param $level integer Which level we're at
* @param $childCount integer How many children are at this level
* @return bool
*/
private static function _isCollapsed($level, $childCount)
{
if (static::$expand_all) {
return false;
}
$cascade = static::$_cascade;
if ($cascade == null) {
$cascade = static::_config('display', 'cascade', array());
}
if (isset($cascade[$level])) {
return $childCount >= $cascade[$level];
}
return true;
}
/**
* Calculate the relative path of a given absolute URL
*
* @return string
* @param $file string The file to calculate the relative path of
* @param $returnDir bool If set to true, only return the dirname
*/
public static function calculate_relative_path($file, $returnDir = false)
{
// We find the document root of the webserver
$doc_root = $_SERVER['DOCUMENT_ROOT'];
// Remove the document root, from the FULL absolute path of the
// file we're looking for
$ret = "/" . str_replace($doc_root, "", $file, $ok);
if (!$ok) {
return false;
}
// If they want the path to the dir, only return the dir part
if ($returnDir) {
$ret = dirname($ret) . "/";
}
$ret = preg_replace("|//|", "/", $ret);
return $ret;
}
/**
* Print the skin (CSS)
*
* @return boolean
*/
private static function _css()
{
static $_css = false;
// already set ?
if ($_css) {
return true;
}
$css = '';
$skin = static::_config('skin', 'selected', 'stylish');
// custom selected skin
$rel_css_file = "skins/{$skin}/skin.css";
$css_file = __DIR__ . "/" . $rel_css_file;
if (is_readable($css_file)) {
$css = file_get_contents($css_file);
}
// default skin
if (!$css && ($skin != 'default')) {
$skin = 'stylish';
$rel_css_file = "skins/$skin/skin.css";
$css_file = __DIR__ . "/" . $rel_css_file;
$css = file_get_contents($css_file);
}
// print
if ($_css = $css != '') {
// See if there is a CSS path in the config
$relative_krumo_path = static::calculate_relative_path(__FILE__, true);
$css_url = static::_config('css', 'url', $relative_krumo_path);
// Default to /krumo/ if nothing is found in the config
$css_url || $css_url = "/krumo/";
$css_url = rtrim($css_url, '/');
// fix the urls
$css_url = "$css_url/skins/{$skin}/";
$css = preg_replace('~%url%~Uis', $css_url, $css);
// the CSS
print "<!-- Using Krumo Skin: \"$skin\" $rel_css_file -->\n";
print "<style type=\"text/css\">\n";
print trim($css) . "\n";
print "</style>\n";
print "<!-- Krumo - CSS -->\n";
// the JS
print "<script type=\"text/javascript\">\n";
$js_min_file = __DIR__ . "/js/krumo.min.js";
$js_file = __DIR__ . "/js/krumo.js";
if (is_readable($js_min_file)) {
$js_text = file_get_contents($js_min_file);
} elseif (is_readable($js_file)) {
$js_text = file_get_contents($js_file);
} else {
$js_text = "// Missing JS file krumo.min.js\n";
}
print "$js_text</script>\n";
print "<!-- Krumo - JavaScript -->\n";
}
return $_css;
}
/**
* Enable Krumo
*
* @return boolean
*/
public static function enable()
{
return true === static::_debug(true);
}
/**
* Disable Krumo
*
* @return boolean
*/
public static function disable()
{
return false === static::_debug(false);
}
/**
* Get\Set Krumo state: whether it is enabled or disabled
*
* @param boolean $state
* @return boolean
*/
private static function _debug($state = null)
{
static $_ = true;
// set
if (isset($state)) {
$_ = (boolean) $state;
}
// get
return $_;
}
private static function sanitizeName($name)
{
// Check if the key has whitespace in it, if so show it and add an icon explanation
$has_white_space = preg_match("/\\s/", $name);
if ($has_white_space) {
// Convert the white space to unicode underbars to visualize it
$name = preg_replace("/\\s/", "␣", $name);
$title = "Note: Key contains white space";
$icon = static::get_icon("information", $title);
$ret = $name . $icon;
} else {
$ret = $name;
}
return $ret;
}
/**
* Dump information about a variable
*
* @param mixed $data
* @param string $name
*/
private static function _dump(&$data, $name = '…')
{
// Highlight elements that have a space in their name.
// Spaces are hard to see in the HTML and are hard to troubleshoot
$name = static::sanitizeName($name);
// object
if (is_object($data)) {
static::_object($data, $name);
}
// Closure
// Not yet implemented
// else if (($data instanceof \Closure))
// static::_closure();
elseif (is_array($data)) {
static::_array($data, $name);
}
// resource
elseif (is_resource($data)) {
static::_resource($data, $name);
}
// scalar
elseif (is_string($data)) {
static::_string($data, $name);
}
// float
elseif (is_float($data)) {
static::_float($data, $name);
}
// integer
elseif (is_integer($data)) {
static::_integer($data, $name);
}
// boolean
elseif (is_bool($data)) {
static::_boolean($data, $name);
}
// null
elseif (is_null($data)) {
static::_null($name);
}
}
/**
* Render a dump for a NULL value
*
* @param string $name
* @return string
*/
private static function _null($name)
{
$html = '<li class="krumo-child">
<div class="krumo-element" onMouseOver="krumo.over(this);" onMouseOut="krumo.out(this);">
<a class="krumo-name">%s</a> %s <em class="krumo-type krumo-null">NULL</em>
</div></li>';
$html = sprintf($html, $name, static::get_separator());
echo $html;
}
/**
* Return the marked used to stain arrays
* and objects in order to detect recursions
*
* @return string
*/
private static function _marker()
{
static $_recursion_marker;
if (!isset($_recursion_marker)) {
$_recursion_marker = uniqid('krumo');
}
return $_recursion_marker;
}
/**
* Adds a variable to the hive of arrays and objects which
* are tracked for whether they have recursive entries
*
* @param mixed &$bee either array or object, not a scalar value
* @return array all the bees
*
*/
private static $objectRecursionProtection = null;
private static function &_hive(&$bee)
{
static $_ = array();
// new bee
if (!is_null($bee)) {
// stain it
$_recursion_marker = static::_marker();
if (is_object($bee)) {
$hash = spl_object_hash($bee);
if ($hash && isset(static::$objectRecursionProtection[$hash])) {
static::$objectRecursionProtection[$hash]++;
} elseif ($hash) {
static::$objectRecursionProtection[$hash] = 1;
}
} else {
if (isset($bee[$_recursion_marker])) {
$bee[$_recursion_marker]++;
} else {
$bee[$_recursion_marker] = 1;
}
}
$_[0][] =& $bee;
}
// return all bees
return $_[0];
}
/**
* Level of recursion.