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().