phossa / phossa-event
A event management library for PHP
Requires
- php: >=5.4.0
- phossa/phossa-shared: >=1.0.8
This package is not auto-updated.
Last update: 2024-11-09 19:51:14 UTC
README
See new lib at phoole/event Introduction
Phossa-event is an event management library for PHP. It decoupled from any
packages other than the phossa/phossa-shared
. It requires PHP5.4 only.
Installation
Install via the composer
utility.
composer require "phossa/phossa-event=1.*"
or add the following lines to your composer.json
{ "require": { "phossa/phossa-event": "1.*" } }
Simple EventDispatcher
Simple event dispatching using Phossa\Event\EventDispatcher
-
Simple usage
$dispatcher = new EventDispatcher(); // bind event 'user.login' to a callable $dispatcher->on('user.login', function(Event $evt) { // ... }); // trigger the 'user.login' event, passing data $dispatcher->trigger('user.login', [ 'user' => $user ]);
or use statically (global dispatching)
// bind event with priority 60 (0 - 100, high # higher priority) EventDispatcher::on('user.login', function(Event $evt) { // ... }, 60); // trigger the 'user.login' event EventDispatcher::trigger('user.login', [ 'user' => $user ]);
-
Trigger for limited times
// bind event for once $dispatcher->one('user.login', function(Event $evt) { // ... }); // allow 3 times $dispatcher->many('user.tag', 3, function(Event $evt) { // ... });
-
Event globbing
// globbing $dispatcher->on('user.*', function(Event $evt) { //... });
-
Detach events
// detach $dispatcher->off('user.*');
-
Monitoring PHP errors
Execute a callable when PHP error happens.
// callable returns bool $dispatcher->error(function($errno, $errstr, $errfile, $errline) { // ... return true; });
-
Execute a callable when script finishes
// run this after script ends $dispatcher->ready(function() { // ... });
Full-fledged EventManager
Complex event management using Phossa\Event\EventManager
with full fledge
support for event listener, event subject, local event manager and global
event manageretc.
-
Event listener
use Phossa\Event\Interfaces; class MyListener implements Interfaces\EventListenerInteface { /* * Get events and callables MyListener listens to */ public function getEventsListening() { return array( 'eventName1' => 'method1', // method1 of $this 'eventName2' => array('method2', 20), // priority 20 'eventName3' => array( // multiple callables [ 'method3', 70 ], [ 'method4', 50 ] ) ); } } $listener = new MyListener();
-
Event manager
// create an event manager $evtManager = new Event\EventManager(); // attach a listener object $evtManager->attachListener($listener); // attach a callable directly to 'oneSpecialEvent' $callable = function(Event\Event $evt) { ... }; $evtManager->attachListener($callable, 'oneSpecialEvent'); // detach a callable $evtManager->detachListener($callable);
-
The event-aware subject
use Phossa\Event\Interfaces; class MyEventAware implements Interfaces\EventAwareInterface { // add setEventManager() and triggerEvent() use Interfaces\EventAwareTrait; ... } $subject = new MyEventAware();
-
Combine together
// set manager to event-aware subject $subject->setEventManager($evtManager); // trigger event $subject->triggerEvent('eventName2');
-
Event globbing
Able to listen to all events by using '' or 'event'.
use Phossa\Event\Interfaces\EventListenerInterface; class Listener implements EventListenerInterface { public function getEventsListening() { return [ 'evtTest1' => 'testC', 'evtTest2' => [ 'testD', 20 ], 'evtTest3' => [ [ 'testA', 70 ], [ 'testB', 50 ] ], // globbing 'evt*' => 'bingo', 'evtTest*' => 'bingo2', '*' => 'wow', ]; } }
-
Event management for static classes.
The static listener class,
use Phossa\Event\Interfaces; class StaticListener implements Interfaces\EventListenerStaticInteface { /* * Get events and callables StaticListener listens to */ public static function getEventsListening() { return array( 'eventName1' => 'method1', // method1 of $this 'eventName2' => array('method2', 20), // priority 20 'eventName3' => array( // multiple callables [ 'method3', 70 ], [ 'method4', 50 ] ) ); } }
The static subject class to use events,
use Phossa\Event\Interfaces; class StaticEventAware implements Interfaces\EventAwareStaticInterface { // add setEventManager() and triggerEvent() use Interfaces\EventAwareStaticTrait; ... }
The static subject class trigger events as follows,
// create an event manager/dispatcher $evtManager = new Event\EventManager(); // attach a static listener class $evtManager->attachListener(StaticListener::CLASS); // set manager/dispatcher to event-aware static subject class StaticEventAware::setEventManagerStatically($evtManager); // trigger event by the static subject class StaticEventAware::triggerEventStatically('eventName2');
-
Composite event manager
Able to use composite event manager as follows,
use Phossa\Event; // global event manager $global_manager = new Event\EventManager(); $global_manager->attachListener($some_global_event_listener); // local event manager $local_manager = new Event\Variation\EventManagerComposite(); $local_manager->attachListener($local_listener); // allow local event manager dispatch events to global event manager $local_manager->setOtherManager('global', $global_manager); // the event aware subject $subject = new MyEventAware(); // set event manager $subject->setEventManager($local_manager); // fire up an event, will look into event handling queue from both // $local_manager and $global_manager $subject->triggerEvent('some_event');
-
Immutable event manager
use Phossa\Event; // low-level manager to hide $_evtManager = new EventManager(); $_evtManager->attachListener(...); ... // expose an immutable event managet to user $evtManager = new Variation\ImmutableEventManager($_evtManager); // cause an exception $evtManager->detachListener( ... );
-
Shareable event manager, a single copy of global manager and lots of local managers.
// get global copy by using static method `getInstance()` $globalEventManager = ShareableEventManager::getInstance(); // normal event managers $localEventManager = new ShareableEventManager(); // is this the global copy? if ($evtManager->isShareable()) { ... } else { ... }
Features
-
Supports PHP 5.4+, PHP 7.0+, HHVM.
-
PHP7 ready for return type declarations and argument type declarations.
-
PSR-1, PSR-2, PSR-4 compliant.
-
Decoupled packages can be used seperately without the framework.
Dependencies
-
PHP >= 5.4.0
-
phossa/phossa-shared >= 1.0.8