method_exists.php

/**
 * That's why i hate PHP...
 */
private static function method_exists($array){
	if(count($array) == 2) return method_exists($array[0], $array[1]);
	else throw new Exception("method_exists needs an array with exactly 2 arguments");
}

/*
 * Turns out, PHP has this method already. It is called 'is_callable'
 * Thanks to @gigalinux
 */

is_callable($array);