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Last updated: Thu, 23 Aug 2007

phpinfo

(PHP 4, PHP 5)

phpinfo — Outputs lots of PHP information

Description

bool phpinfo ( [int $what] )

Outputs a large amount of information about the current state of PHP. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version information, paths, master and local values of configuration options, HTTP headers, and the PHP License.

Because every system is setup differently, phpinfo() is commonly used to check configuration settings and for available predefined variables on a given system.

phpinfo() is also a valuable debugging tool as it contains all EGPCS (Environment, GET, POST, Cookie, Server) data.

Parameters

what

The output may be customized by passing one or more of the following constants bitwise values summed together in the optional what parameter. One can also combine the respective constants or bitwise values together with the or operator.

Table 263. phpinfo() options

Name (constant)	Value	Description
INFO_GENERAL	1	The configuration line, `php.ini` location, build date, Web Server, System and more.
INFO_CREDITS	2	PHP Credits. See also phpcredits().
INFO_CONFIGURATION	4	Current Local and Master values for PHP directives. See also ini_get().
INFO_MODULES	8	Loaded modules and their respective settings. See also get_loaded_extensions().
INFO_ENVIRONMENT	16	Environment Variable information that's also available in `$_ENV`.
INFO_VARIABLES	32	Shows all predefined variables from EGPCS (Environment, GET, POST, Cookie, Server).
INFO_LICENSE	64	PHP License information. See also the » license FAQ.
INFO_ALL	-1	Shows all of the above. This is the default value.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 1833. phpinfo() Example


<?php



// Show all information, defaults to INFO_ALL

phpinfo();



// Show just the module information.

// phpinfo(8) yields identical results.

phpinfo(INFO_MODULES);



?>

Notes

Note: Parts of the information displayed are disabled when the expose_php configuration setting is set to off. This includes the PHP and Zend logos, and the credits.

Note: phpinfo() outputs plain text instead of HTML when using the CLI mode.


Embedding phpinfo within your page, that already has style information:



The phpinfo output is wrapped within a <div class='phpinfodisplay'>, and we privatize all the style selectors that phpinfo() creates.



Yes, we cheat on preparing the selector list.



<?php

ob_start();

phpinfo();



preg_match ('%<style type="text/css">(.*?)</style>.*?(<body>.*</body>)%s', ob_get_clean(), $matches);



# $matches [1]; # Style information

# $matches [2]; # Body information



echo "<div class='phpinfodisplay'><style type='text/css'>\n",

    join( "\n",

        array_map(

            create_function(

                '$i',

                'return ".phpinfodisplay " . preg_replace( "/,/", ",.phpinfodisplay ", $i );'

                ),

            preg_split( '/\n/', $matches[1] )

            )

        ),

    "</style>\n",

    $matches[2],

    "\n</div>\n";

?>



Perhaps one day the phpinfo() function will be modified to output such a safe string on its own.

Andrew dot Boag at catalyst dot net dot nz
09-Sep-2007 04:47


One note on the above functions for cleaning up the phpinfo() HTML and throwing it into an array data structure. In order to catch all of the info tidbits the preg_match_all has to be tweaked to deal with 2 and 3 column tables.



I have changed the preg_match_all() here so that the last <td></td> is optional



function parsePHPConfig() {

    ob_start();

    phpinfo(-1);

    $s = ob_get_contents();

    ob_end_clean();

    $a = $mtc = array();

    if (preg_match_all('/<tr><td class="e">(.*?)<\/td><td class="v">(.*?)<\/td>(:?<td class="v">(.*?)<\/td>)?<\/tr>/',$s,$mtc,PREG_SET_ORDER))

        foreach($mtc as $v){

            if($v[2] == '<i>no value</i>') continue;

            $a[$v[1]] = $v[2];

        }

    }

    return $a;

}

jo at durchholz dot org
14-Aug-2007 06:43


Here's a variant of "print it without headers, but include the style information":



<?php

ob_start();

phpinfo();

$info = ob_get_clean ();



$matches = array ();

$i = preg_match ('%(<style type="text/css">.*</style>).*<body>(.*)</body>%s', $info, $matches);



print $matches [1]; # Style information

print $matches [2]; # Body

dev at cheechtech dot com
07-Jan-2007 06:35


same as above for configuration variables



function parsePHPConfig() {

    ob_start();

    phpinfo(INFO_CONFIGURATION);

    $s = ob_get_contents();

    ob_end_clean();

    $a = $mtc = array();

    if (preg_match_all('/<tr><td class="e">(.*?)<\/td><td class="v">(.*?)<\/td><td class="v">(.*?)<\/td><\/tr>/',$s,$mtc,PREG_SET_ORDER)) {

        foreach($mtc as $v){

            if($v[2] == '<i>no value</i>') continue;

            $a[$v[1]] = $v[2];

        }

    }

    return $a;

}

jb2386 at hotmail dot com
11-Oct-2006 01:29


This is a slight modification to the previous code by "code at adspeed dot com" that extracts the PHP modules as an array. I used it on PHP 4.1.2 and it failed as the <h2> tags also had an align="center". So this update changes the regex for those tags:



<?php



/* parse php modules from phpinfo */



function parsePHPModules() {

 ob_start();

 phpinfo(INFO_MODULES);

 $s = ob_get_contents();

 ob_end_clean();



 $s = strip_tags($s,'<h2><th><td>');

 $s = preg_replace('/<th[^>]*>([^<]+)<\/th>/',"<info>\\1</info>",$s);

 $s = preg_replace('/<td[^>]*>([^<]+)<\/td>/',"<info>\\1</info>",$s);

 $vTmp = preg_split('/(<h2[^>]*>[^<]+<\/h2>)/',$s,-1,PREG_SPLIT_DELIM_CAPTURE);

 $vModules = array();

 for ($i=1;$i<count($vTmp);$i++) {

  if (preg_match('/<h2[^>]*>([^<]+)<\/h2>/',$vTmp[$i],$vMat)) {

   $vName = trim($vMat[1]);

   $vTmp2 = explode("\n",$vTmp[$i+1]);

   foreach ($vTmp2 AS $vOne) {

   $vPat = '<info>([^<]+)<\/info>';

   $vPat3 = "/$vPat\s*$vPat\s*$vPat/";

   $vPat2 = "/$vPat\s*$vPat/";

   if (preg_match($vPat3,$vOne,$vMat)) { // 3cols

     $vModules[$vName][trim($vMat[1])] = array(trim($vMat[2]),trim($vMat[3]));

   } elseif (preg_match($vPat2,$vOne,$vMat)) { // 2cols

     $vModules[$vName][trim($vMat[1])] = trim($vMat[2]);

   }

   }

  }

 }

 return $vModules;

}

?>

php at SPAMMENOT dot tof2k dot com
10-Sep-2006 07:32


To obtain a phpinfo without headers (and css) :



<?

ob_start();                                                                                                        

phpinfo();                                                                                                         

$info = ob_get_contents();                                                                                         

ob_end_clean();                                                                                                    

?>



$info = preg_replace('%^.*<body>(.*)</body>.*$%ms', '$1', $info);



You can then style your tables & headings :)

code at adspeed dot com
10-Dec-2005 08:31


This function parses the phpinfo output to get details about a PHP module. 



/** parse php modules from phpinfo */

function parsePHPModules() {

 ob_start();

 phpinfo(INFO_MODULES);

 $s = ob_get_contents();

 ob_end_clean();

 

 $s = strip_tags($s,'<h2><th><td>');

 $s = preg_replace('/<th[^>]*>([^<]+)<\/th>/',"<info>\\1</info>",$s);

 $s = preg_replace('/<td[^>]*>([^<]+)<\/td>/',"<info>\\1</info>",$s);

 $vTmp = preg_split('/(<h2>[^<]+<\/h2>)/',$s,-1,PREG_SPLIT_DELIM_CAPTURE);

 $vModules = array();

 for ($i=1;$i<count($vTmp);$i++) {

  if (preg_match('/<h2>([^<]+)<\/h2>/',$vTmp[$i],$vMat)) {

   $vName = trim($vMat[1]);

   $vTmp2 = explode("\n",$vTmp[$i+1]);

   foreach ($vTmp2 AS $vOne) {

    $vPat = '<info>([^<]+)<\/info>';

    $vPat3 = "/$vPat\s*$vPat\s*$vPat/";

    $vPat2 = "/$vPat\s*$vPat/";

    if (preg_match($vPat3,$vOne,$vMat)) { // 3cols

     $vModules[$vName][trim($vMat[1])] = array(trim($vMat[2]),trim($vMat[3])); 

    } elseif (preg_match($vPat2,$vOne,$vMat)) { // 2cols

     $vModules[$vName][trim($vMat[1])] = trim($vMat[2]); 

    } 

   } 

  } 

 } 

 return $vModules;

}



Sample Output:

[gd] => Array

(

  [GD Support] => enabled

  [GD Version] => bundled (2.0.28 compatible)

  [FreeType Support] => enabled

  [FreeType Linkage] => with freetype

  [FreeType Version] => 2.1.9

  [T1Lib Support] => enabled

  [GIF Read Support] => enabled

  [GIF Create Support] => enabled

  [JPG Support] => enabled

  [PNG Support] => enabled

  [WBMP Support] => enabled

  [XBM Support] => enabled

)



[date] => Array (

  [date/time support] => enabled

  [Timezone Database Version] => 2005.14

  [Timezone Database] => internal

  [Default timezone] => America/Los_Angeles

  [Directive] => Array (

     [0] => Local Value

     [1] => Master Value

  )

  [date.timezone] => Array (

     [0] => no value

     [1] => no value

  )

 )



/** get a module setting */

function getModuleSetting($pModuleName,$pSetting) {

 $vModules = parsePHPModules();

 return $vModules[$pModuleName][$pSetting];

}

Example: getModuleSetting('gd','GD Version'); returns "bundled (2.0.28 compatible)"

Helpful Harry
07-Oct-2005 12:38


check out this cool and fantastic colourful phpinfo()!



<?php



ob_start();

phpinfo();

$phpinfo = ob_get_contents();

ob_end_clean();



preg_match_all('/#[0-9a-fA-F]{6}/', $phpinfo, $rawmatches);

for ($i = 0; $i < count($rawmatches[0]); $i++)

   $matches[] = $rawmatches[0][$i];

$matches = array_unique($matches);



$hexvalue = '0123456789abcdef';



$j = 0;

foreach ($matches as $match)

{



   $r = '#';

   $searches[$j] = $match;

   for ($i = 0; $i < 6; $i++)

      $r .= substr($hexvalue, mt_rand(0, 15), 1);

   $replacements[$j++] = $r;

   unset($r);

}



for ($i = 0; $i < count($searches); $i++)

   $phpinfo = str_replace($searches, $replacements, $phpinfo);

echo $phpinfo;

?>

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