get_defined_functions

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

get_defined_functions — Liste toutes les fonctions définies

Description

get_defined_functions(bool $exclude_disabled = true): array

Liste toutes les fonctions définies.

Liste de paramètres

exclude_disabled: Si les fonctions désactivé doivent être exclus de la valeur de retour.

Valeurs de retour

Retourne un tableau multidimensionnel, contenant la liste de toutes les fonctions définies, aussi bien les fonctions internes à PHP que celle déjà définie par l'utilisateur. Les noms des fonctions internes sont accessibles via $arr["internal"], et les fonctions utilisateur sont accessibles via $arr["user"].

Historique

Version	Description
8.0.0	La valeur par défaut du paramètre `exclude_disabled` a été changé de `false` à `true`.
7.0.15, 7.1.1	Le paramètre `exclude_disabled` a été ajouté.

Exemples

Exemple #1 Exemple avec get_defined_functions()

<?php
function myrow($id, $data)
{
    return "<tr><th>$id</th><td>$data</td></tr>\n";
}

$arr = get_defined_functions();

print_r($arr);
?>

Résultat de l'exemple ci-dessus est similaire à :

Array
(
    [internal] => Array
        (
            [0] => zend_version
            [1] => func_num_args
            [2] => func_get_arg
            [3] => func_get_args
            [4] => strlen
            [5] => strcmp
            [6] => strncmp
            ...
            [750] => bcscale
            [751] => bccomp
        )

    [user] => Array
        (
            [0] => myrow
        )

)

Voir aussi

function_exists() - Indique si une fonction est définie
get_defined_vars() - Liste toutes les variables définies
get_defined_constants() - Retourne la liste des constantes et leurs valeurs
get_declared_classes() - Liste toutes les classes définies dans PHP

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User Contributed Notes 5 notes

down

kkuczok at gmail dot com ¶

11 years ago

You can list all arguments using ReflectionFunction class. It's not necessary to parse selected files/files as suggested by Nguyet.Duc.

http://php.net/manual/pl/class.reflectionfunction.php

Example:
<?php
function foo(&$bar, $big, $small = 1) {}
function bar($foo) {}
function noparams() {}
function byrefandopt(&$the = 'one') {}

$functions = get_defined_functions();
$functions_list = array();
foreach ($functions['user'] as $func) {
        $f = new ReflectionFunction($func);
        $args = array();
        foreach ($f->getParameters() as $param) {
                $tmparg = '';
                if ($param->isPassedByReference()) $tmparg = '&';
                if ($param->isOptional()) {
                        $tmparg = '[' . $tmparg . '$' . $param->getName() . ' = ' . $param->getDefaultValue() . ']';
                } else {
                        $tmparg.= '&' . $param->getName();
                }
                $args[] = $tmparg;
                unset ($tmparg);
        }
        $functions_list[] = 'function ' . $func . ' ( ' . implode(', ', $args) . ' )' . PHP_EOL;
}
print_r($functions_list);
?>

Output:
Array
(
    [0] => function foo ( &&bar, &big, [$small = 1] )

    [1] => function bar ( &foo )

    [2] => function noparams (  )

    [3] => function byrefandopt ( [&$the = one] )

)

down

mIHATESPAMduskis at bates dot edu ¶

22 years ago

At least with PHP 4.2.3 on a GNU/Linux/Apache platform, get_defined_functions() returns user-defined functions as all-lower case strings regardless of how the functions are capitalized when they are defined.

Threw me for a loop.

down

peten at spam dot me dot not dot frontiernet dot net ¶

22 years ago

Here's a useful trick with the get_defined_functions function - show all available functions with a link to the documentation (you can even change the mirror it goes to):

<?php
  // the php mirror 
  $php_host = "http://us2.php.net/";

  // the number of cols in our table
  $num_cols = 3;

  $ar = get_defined_functions();
  $int_funct = $ar[internal];
  sort($int_funct);
  $count = count($int_funct);
?>
<html>
 <head>
  <title>
   Available PHP Functions
  </title>
 </head>
 <body>
  <p>
   <?php print $count; ?> functions     
    available on 
    <?php 
      print $_SERVER[SERVER_NAME]; 
     ?>
   (<a href="<?php print $php_host;?>" 
    target="phpwin">php</a>
    version 
    <?php print phpversion(); ?>)
  </p>
  <table align="center" border="2">
   <tr>  
<?php
  for($i=0;$i<$count;$i++) {
    $doc = $php_host 
     . "manual/en/function."
     . strtr($int_funct[$i], "_", "-") 
     . ".php";
    print "    <td><a href=\"" . $doc 
     . "\" target=\"phpwin\">" 
     . $int_funct[$i] 
     . "</a></td>\n";
    if(($i > 1) 
     && (($i+$num_cols)%$num_cols==($num_cols-1)))   
      print "   </tr>\n   <tr>\n";
    }
  for($i=($num_cols-($count%$num_cols));$i>0;$i--)  
    print "    <td>&nbsp;</td>\n";
?>
  </table>
 </body>
</html>

down

berchentreff at berchentreff dot de ¶

18 years ago

look at here, list all the defined function on your php-Version and give as well formatted output width links onto the php-manual:

<html><head>
<style type="text/css"><!--
li{font-family:Verdana,Arail,sans-serif;width:500px;margin-top:7px;}
a{padding:4px;}
a.a1{font-size:12px;background-color:#CCCCCC;color:#663300;}
a.a1:hover{background-color:#663300;color:#CCCCCC;}
a.a1:visited{background-color:#fff;color:#999;}
a.a1:visited:hover{background-color:#fff;color:#999;}
a.a0{font-size:12px;background-color:#CCCCFF;color:#663399;}
a.a0:hover{background-color:#663399;color:#CCCCFF;}
a.a0:visited{background-color:#ffC;color:#999;}
a.a0:visited:hover{background-color:#ffC;color:#999;}
--></style>
</head><body style="background-color:#999;">
<?php
$arr = get_defined_functions();

foreach($arr as $zeile){
sort($zeile);$s=0;
foreach($zeile as $bzeile){
$s=($s)?0:1;
echo "<li><a class='a".$s."'  href='http://de.php.net/".$bzeile."'>".$bzeile."</a></li>";}
}
?>
</body>
</html>

down

Muneeb Aslam ¶

9 years ago

This is rather a simple non-confusing script to get the function names linked to its manual page on php.net. Hope it helps someone. Commented script is self explainatory

<?php
    
    /*declare a variable to php manual of functions.
    change the $lng to the region you want it for,
    i-e en/es/de etc etc */
    $lng = "es";
    $url = "http://www.php.net/manual/".$lng."/function.";
    
    // get defined functions in a variable (it will be a 2D array)
    $functions = get_defined_functions();
    
    // Run nested foreach to get the function names
    foreach($functions as $function){
        foreach ($function as $functionName){
            
            /* Since php manual is using hyphens instead of underscores
            for functions, we will convert underscores to hyphen whereever
            there is one. */
            if(strpos($functionName,"_") !== false){
                $functionForURL = str_replace("_","-",$functionName);
            } else {
                $functionForURL = $functionName;
            }
            
            /* echo the link */
            echo "<a href='".$url.$functionForURL.".php'>".$functionName."</a><br />";
        }
    }
    
?>

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