get_defined_functions

(PHP 4 >= 4.0.4, PHP 5)

get_defined_functions --  Returns an array of all defined functions

Description

array get_defined_functions ( void )

This function returns an 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).

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

$arr = get_defined_functions();

print_r($arr);
?>

Will output something along the lines of:

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         )  )

See also function_exists(), get_defined_vars() and get_defined_constants().