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phpinfo

(PHP 4, PHP 5, PHP 7, PHP 8)

phpinfo — PHP の設定情報を出力する

説明

phpinfo(int $flags = INFO_ALL): true

現在の PHP の状態に関する、多くの情報を出力します。出力される情報には、 PHP コンパイルオプションと拡張モジュール、PHP のバージョン、サーバー情報と環境（モジュールとしてコンパイルされた場合）、 PHP の環境、OS バージョン情報、パス、構成オプションのマスターおよびローカルの値、HTTP ヘッダ、PHP License などがあります。

システムの設定はそれぞれ違うため、実行時設定や利用できる定義済みの変数を調べるために phpinfo() がよく使われます。

また、phpinfo() には EGPCS (Environment, GET, POST, Cookie, Server) の情報が含まれているため、デバッグツールとしても便利です。

パラメータ

flags

以下にあるconstantsビット値をひとつまたは複数個を加算して、オプションのflags引数に渡すことによって出力をカスタマイズできます。それぞれの定数やビット値をビット和演算子で結んで渡すこともできます。

**phpinfo()** のオプション
名前(定数)	値	説明
INFO_GENERAL	1	configure オプション、`php.ini` の場所、ビルド日時、 Web サーバー、オペレーティングシステム等。
INFO_CREDITS	2	PHP クレジット。phpcredits() も参照ください。
INFO_CONFIGURATION	4	ローカルおよびマスタの、現在の PHP ディレクティブの値。 ini_get() も参照ください。
INFO_MODULES	8	ロードされているモジュールと、それぞれの設定。 get_loaded_extensions() も参照ください。
INFO_ENVIRONMENT	16	`$_ENV` で取得できる環境変数の情報。
INFO_VARIABLES	32	EGPCS（環境変数・GET・POST・クッキー・サーバー変数）からすべての定義済みの変数を表示します。
INFO_LICENSE	64	PHP ライセンス情報。» ライセンス FAQ も参照ください。
INFO_ALL	-1	上記のすべてを表示します。

戻り値

常に true を返します。

例

例1 phpinfo() の例

<?php

// すべての情報を表示します。デフォルトは INFO_ALL です。
phpinfo();

// モジュール情報だけを表示します。
// phpinfo(8) としても同じです。
phpinfo(INFO_MODULES);

?>

注意

注意:
PHP 5.5 より前のバージョンでは、 expose_php が off の場合、一部の情報は表示されません。これにはPHPとZendのロゴ、そしてクレジットが含まれます。

注意:
CLI モードを利用している場合、phpinfo() は HTML ではなくプレーンテキストで結果を出力します。

参考

phpversion() - 現在の PHP バージョンを取得する
phpcredits() - PHP に関するクレジットを出力する
ini_get() - 設定オプションの値を得る
ini_set() - 設定オプションの値を設定する
get_loaded_extensions() - コンパイル/ロードされている全てのモジュールの名前を配列として返す
定義済みの変数

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User Contributed Notes 19 notes

down

Phelon Dudras ¶

16 years ago

A simple method to style your own phpinfo() output.

<style type="text/css">
#phpinfo {}
#phpinfo pre {}
#phpinfo a:link {}
#phpinfo a:hover {}
#phpinfo table {}
#phpinfo .center {}
#phpinfo .center table {}
#phpinfo .center th {}
#phpinfo td, th {}
#phpinfo h1 {}
#phpinfo h2 {}
#phpinfo .p {}
#phpinfo .e {}
#phpinfo .h {}
#phpinfo .v {}
#phpinfo .vr {}
#phpinfo img {}
#phpinfo hr {}
</style>

<div id="phpinfo">
<?php

ob_start () ;
phpinfo () ;
$pinfo = ob_get_contents () ;
ob_end_clean () ;

// the name attribute "module_Zend Optimizer" of an anker-tag is not xhtml valide, so replace it with "module_Zend_Optimizer"
echo ( str_replace ( "module_Zend Optimizer", "module_Zend_Optimizer", preg_replace ( '%^.*<body>(.*)</body>.*$%ms', '$1', $pinfo ) ) ) ;

?>
</div>

down

code at adspeed dot com ¶

19 years ago

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



<?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;

}

?>



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

  )

 )





<?php

/** 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)"

down

cbar at vmait dot com ¶

10 years ago

<?php

// NOTE: When accessing a element from the above phpinfo_array(), you can do:
$array = phpinfo_array();

// This will work
echo $array["General"]["System "];  

// This should work also, but it doesn't because there is a space after System in the array.
  echo $array["General"]["System"];  

// I hope the coder will fix it, so as to save someone else from wasting time. Otherwise, nice script.
 

?>

down

Helpful Harry ¶

19 years ago

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;
?>

down

jon at sitewizard dot ca ¶

16 years ago

To extract all of the data from phpinfo into a nested array:
<?php
ob_start();
phpinfo();
$phpinfo = array('phpinfo' => array());
if(preg_match_all('#(?:<h2>(?:<a name=".*?">)?(.*?)(?:</a>)?</h2>)|(?:<tr(?: class=".*?")?><t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>)?)?</tr>)#s', ob_get_clean(), $matches, PREG_SET_ORDER))
    foreach($matches as $match)
        if(strlen($match[1]))
            $phpinfo[$match[1]] = array();
        elseif(isset($match[3]))
            $phpinfo[end(array_keys($phpinfo))][$match[2]] = isset($match[4]) ? array($match[3], $match[4]) : $match[3];
        else
            $phpinfo[end(array_keys($phpinfo))][] = $match[2];
?>

Some examples of using individual values from the array:

<?php
    echo "System: {$phpinfo['phpinfo']['System']}<br />\n";
    echo "Safe Mode: {$phpinfo['PHP Core']['safe_mode'][0]}<br />\n";
    echo "License: {$phpinfo['PHP License'][0]}<br />\n";
?>

To display everything:

<?php
    foreach($phpinfo as $name => $section) {
        echo "<h3>$name</h3>\n<table>\n";
        foreach($section as $key => $val) {
            if(is_array($val))
                echo "<tr><td>$key</td><td>$val[0]</td><td>$val[1]</td></tr>\n";
            elseif(is_string($key))
                echo "<tr><td>$key</td><td>$val</td></tr>\n";
            else
                echo "<tr><td>$val</td></tr>\n";
        }
        echo "</table>\n";
    }
?>

Note: In order to properly retrieve all of the data, the regular expression matches table headers as well as table data, resulting in 'Local Value' and 'Global Value' showing up as 'Directive' entries.

down

jb2386 at hotmail dot com ¶

18 years ago

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;
}
?>

down

keinwort at hotmail dot com ¶

7 years ago

REMARK/INFO: if Content-Security-Policy HTTP header
is
Content-Security-Policy "default-src 'self';";

phpinfo() is shown without a table

down

arimbourg at ariworld dot eu ¶

14 years ago

This is necessary to obtain a W3C validation (XHTML1.0 Transitionnal)...
phpinfo's output is declared with that DTD :
- "System ID" has the wrong url to validate : "DTD/xhtml1-transitional.dtd" rather than "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
- Some module names contains space and the function's output use the name in anchors as ID and NAME. these attributes can't be validated like that (unique name only).

<?php

ob_start ();

ob_start ();                              // Capturing
phpinfo ();                               // phpinfo ()
$info = trim (ob_get_clean ());           // output

// Replace white space in ID and NAME attributes... if exists
$info = preg_replace ('/(id|name)(=["\'][^ "\']+) ([^ "\']*["\'])/i', '$1$2_$3', $info);

$imp = new DOMImplementation ();
$dtd = $imp->createDocumentType (
    'html',
    '-//W3C//DTD XHTML 1.0 Transitional//EN',
    'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'
);
$doc = $imp->createDocument (
    'http://www.w3.org/1999/xhtml',
    'html',
    $dtd
);
$doc->encoding = 'utf-8';

$info_doc = new DOMDocument ('1.0', 'utf-8');
/* Parse phpinfo's output
 * operator @ used to avoid messages about undefined entities
 * or use loadHTML instead
 */
@$info_doc->loadXML ($info);

$doc->documentElement->appendChild ( // Adding HEAD element to HTML
    $doc->importNode (
        $info_doc->getElementsByTagName ('head')->item (0),
        true                         // With all the subtree
    )
);
$doc->documentElement->appendChild ( // Adding BODY element to HTML
    $doc->importNode (
        $info_doc->getElementsByTagName ('body')->item (0),
        true                         // With all the subtree
    )
);

// Now you get a clean output and you are able to validate...
/*
echo ($doc->saveXML ());
//      OR
echo ($doc->saveHTML ());
 */

// By that way it's easy to add some style declaration :
$style = $doc->getElementsByTagName ('style')->item (0);
$style->appendChild (
    $doc->createTextNode (
        '/* SOME NEW CSS RULES TO ADD TO THE FUNCTION OUTPUT */'
    )
);

// to add some more informations to display :
$body = $doc->getElementsByTagName ('body')->item (0);
$element = $doc->createElement ('p');
$element->appendChild (
    $doc->createTextNode (
        'SOME NEW CONTENT TO DISPLAY'
    )
);
$body->appendChild ($element);

// to add a new header :
$head = $doc->getElementsByTagName ('head')->item (0);
$meta = $doc->createElement ('meta');
$meta->setAttribute ('name', 'author');
$meta->setAttribute ('content', 'arimbourg at ariworld dot eu');
$head->appendChild ($meta);

// As you wish, take the rest of the output and add it for debugging
$out = ob_get_clean ();

$pre = $doc->createElement ('div'); // or pre
$pre->setAttribute ('style', 'white-space: pre;'); // for a div element, useless with pre
$pre->appendChild ($doc->createTextNode ($out));
$body->appendChild ($pre);

$doc->formatOutput = true; // For a nice indentation
$doc->saveXML ();

?>

All that could be done with only RegExp but I prefer the use of DOM for manipulating documents

down

yurkins ¶

16 years ago

big thanx 2 Mardy dot Hutchinson at gmail dot com
very good!

some fixes to correct result displaying:
1. we need to trim $matches [1], 'cause there can be empty lines;
2. not bad to remove <body> tag 'cause styles for it not apply correctly...
3. ...and change styles a little (remove "body" selector)

we need to change two lines:

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

and

<?php
preg_split( '/\n/', $matches[1] )
?>
to
<?php
preg_split( '/\n/', trim(preg_replace( "/\nbody/", "\n", $matches[1])) )
?>

That's all! Now we have a really flexible addition to phpinfo();

down

alec dot hewitt at gmail dot com ¶

1 year ago

Simple JS snippet to print phpinfo() inline with it's styles renamed. Thus leaving the container page unaffected and pretty.

<script>
document.write(`<div id="phpinfo"><?php phpinfo(61) ?></div>`);
var x = document.querySelector('#phpinfo > style');
x.innerText = x.innerText.replaceAll('\n', '#phpinfo ');
</script>

down

Ken ¶

13 years ago

Hi.

Here my version of saving php_info into an array:

<?php
function phpinfo_array()
{
    ob_start();
    phpinfo();
    $info_arr = array();
    $info_lines = explode("\n", strip_tags(ob_get_clean(), "<tr><td><h2>"));
    $cat = "General";
    foreach($info_lines as $line)
    {
        // new cat?
        preg_match("~<h2>(.*)</h2>~", $line, $title) ? $cat = $title[1] : null;
        if(preg_match("~<tr><td[^>]+>([^<]*)</td><td[^>]+>([^<]*)</td></tr>~", $line, $val))
        {
            $info_arr[$cat][$val[1]] = $val[2];
        }
        elseif(preg_match("~<tr><td[^>]+>([^<]*)</td><td[^>]+>([^<]*)</td><td[^>]+>([^<]*)</td></tr>~", $line, $val))
        {
            $info_arr[$cat][$val[1]] = array("local" => $val[2], "master" => $val[3]);
        }
    }
    return $info_arr;
}

// example:
echo "<pre>".print_r(phpinfo_array(), 1)."</pre>";
?>

down

LewisR ¶

9 years ago

Building on SimonD's elegant example to hide the logged-in username and password, which otherwise appear in plain text, the following should work for PHP 5.4+:

<?php
    // start output buffering
    ob_start();

    // send phpinfo content
    phpinfo();

    // get phpinfo content
    $html = ob_get_contents();

    // flush the output buffer
    ob_end_clean();

    // remove auth data
    if ( isset( $_SERVER[ 'PHP_AUTH_USER' ] ) ) $html = str_replace( $_SERVER[ 'PHP_AUTH_USER' ], '[ protected ]' , $html);
    if ( isset( $_SERVER[ 'PHP_AUTH_PW' ] ) ) $html = str_replace( $_SERVER[ 'PHP_AUTH_PW' ], '[ protected ]' , $html);

    echo $html;
?>

To remove additional items, just add them as above.

down

SimonD ¶

11 years ago

Removes sensitive data like AUTH_USER and AUTH_PASSWORD from the phpinfo output:

<?php
// start output buffering
ob_start();

// send phpinfo content
phpinfo();

// get phpinfo content
$html = ob_get_contents();

// flush the output buffer
ob_end_clean();

// remove auth data
if (isset($_SERVER['AUTH_USER'])) $html = str_replace($_SERVER['AUTH_USER'], '<i>no value</i>', $html);
if (isset($_SERVER['AUTH_PASSWORD'])) $html = str_replace($_SERVER['AUTH_PASSWORD'], '<i>no value</i>', $html);

echo $html;

down

Atelier ”慶”

WEBクリエイター歴２０年、最先端技術と安心をお届けします。

PHPのお勉強！

phpinfo

説明

パラメータ

戻り値

例

注意

参考

Found A Problem?

User Contributed Notes 19 notes