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

function_exists() - Retorna true se a função informada estiver definida
get_defined_vars() - Retorna um array com todas variáveis definidas
get_defined_constants() - Retorna um array associativo com os nomes de todas as constantes e seus valores
get_declared_classes() - Retorna um array com os nomes das classes definidas

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Notas Enviadas por Usuários (em inglês) 5 notes

down

kkuczok at gmail dot com ¶

12 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.phpExample:<?phpfunction 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 ¶

23 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 ¶

19 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>

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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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