get_defined_functions

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

    get_defined_functions — Retorna um array com todas as funções definidas

    Descrição

    get_defined_functions(bool $exclude_disabled = true): array

    Obtém um array com todas as funções definidas.

    Parâmetros

    exclude_disabled

    Opção para definir se funções desabilitadas devem ser excluídas do valor de retorno.

    Valor Retornado

    Retorna um array multidimensional contendo uma lista de todas as funções definidas, tanto as internas quanto as definidas pelo usuário. As funções internas podem ser acessadas em $arr["internal"], e as definidas por usuário em $arr["user"] (veja exemplo abaixo).

    Registro de Alterações

    Versão Descrição
    8.0.0 O valor padrão do parâmetro exclude_disabled mudou de false para true.
    7.0.15, 7.1.1 O parâmetro exclude_disabled foi adicionado.

    Exemplos

    Exemplo #1 Exemplo de 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);
    ?>

    O exemplo acima produzirá algo semelhante a:

    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
        )

)

    Veja Também

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    Notas Enviadas por Usuários (em inglês) 5 notes

    up
    15
    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] )

    )
    up
    10
    mIHATESPAMduskis at bates dot edu
    21 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.
    up
    6
    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>
    up
    5
    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>
    up
    2
    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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