update : 2015.11.03
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Returns an array of all defined functions
Function handling 함수 목록
PHP Manual

get_defined_functions

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

get_defined_functions — Returns an array of all defined functions

설명

array get_defined_functions ( void )

Gets an array of all defined functions.

반환값

Returns a multidimensional array containing a list of all defined functions, both built-in (internal) and user-defined. The internal functions will be accessible via $arr["internal"], and the user defined ones using $arr["user"] (see example below).

예제

Example #1 get_defined_functions() example

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

$arr = get_defined_functions();

print_r($arr);
?>

위 예제의 출력 예시:

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
        )

)

참고

Function handling 함수 목록
PHP Manual