Online PHP editor | rfc for Ov24F

@ 2014-08-21T20:49:42Z

<?php

    class Observer {
        static protected $events = array();
        static public function register($callable, $event){
            if (!isset(self::$events[$event])) {
                self::$events[$event] = array();
            }
            self::$events[$event][] = $callable;
        }
        static public function notify($event, $params = array()) {
            if (isset(self::$events[$event])) {
                foreach (self::$events[$event] AS $callable){
                    call_user_func_array($callable, $params);
                }
            }
        }
    }

    function print_meta($p1, $p2) {
        echo $p1 . ' ' . $p2 . PHP_EOL;
    }

    function multiply_meta($p1, $p2) {
        echo $p1 * $p2 . PHP_EOL;
    }

    function add_meta($p1, $p2) {
        echo $p1 + $p2 . PHP_EOL;
    }

    Observer::register('print_meta', 'event1');
    Observer::register('multiply_meta', 'event1');

    Observer::register('print_meta', 'event2');
    Observer::register('add_meta', 'event2');

    Observer::register('multiply_meta', 'event3');
    Observer::register('add_meta', 'event3');

    echo "Notifying of event 1" . PHP_EOL;
    Observer::notify('event1', array(1, 2));
    echo "Notifying of event 2" . PHP_EOL;
    Observer::notify('event2', array(3, 4));
    echo "Notifying of event 3" . PHP_EOL;
    Observer::notify('event3', array(5, 6));

Output for git.master, git.master_jit, rfc.property-hooks: Notifying of event 1 1 2 2 Notifying of event 2 3 4 7 Notifying of event 3 30 11

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