plugin.php

<?php
	function _applyPlugin($function, $args) {
		foreach ($this->plugins as $plugin) {
			if (method_exists($plugin, $function)) {
				switch (count($args)) { // call_user_func_array() doesn't work well with references
					case 0: $return = $plugin->$function(); break;
					case 1: $return = $plugin->$function($args[0]); break;
					case 2: $return = $plugin->$function($args[0], $args[1]); break;
					case 3: $return = $plugin->$function($args[0], $args[1], $args[2]); break;
					case 4: $return = $plugin->$function($args[0], $args[1], $args[2], $args[3]); break;
					case 5: $return = $plugin->$function($args[0], $args[1], $args[2], $args[3], $args[4]); break;
					case 6: $return = $plugin->$function($args[0], $args[1], $args[2], $args[3], $args[4], $args[5]); break;
					default: trigger_error('Too many parameters.', E_USER_WARNING);
				}
				if ($return !== null) {
					return $return;
				}
			}
		}
		return $this->_callParent($function, $args);
	}