| public static off ( string $class, string $name, callable $handler = null ) : boolean | ||
| $class | string | the fully qualified class name from which the event handler needs to be detached. |
| $name | string | the event name. |
| $handler | callable | the event handler to be removed. If it is `null`, all handlers attached to the named event will be removed. |
| Результат | boolean | whether a handler is found and detached. |
public static function off($class, $name, $handler = null)
{
$class = ltrim($class, '\\');
if (empty(self::$_events[$name][$class])) {
return false;
}
if ($handler === null) {
unset(self::$_events[$name][$class]);
return true;
} else {
$removed = false;
foreach (self::$_events[$name][$class] as $i => $event) {
if ($event[0] === $handler) {
unset(self::$_events[$name][$class][$i]);
$removed = true;
}
}
if ($removed) {
self::$_events[$name][$class] = array_values(self::$_events[$name][$class]);
}
return $removed;
}
} public function testOff()
{
$handler = function ($event) {
$this->counter++;
};
$this->assertFalse(Event::hasHandlers(Post::className(), 'save'));
Event::on(Post::className(), 'save', $handler);
$this->assertTrue(Event::hasHandlers(Post::className(), 'save'));
Event::off(Post::className(), 'save', $handler);
$this->assertFalse(Event::hasHandlers(Post::className(), 'save'));
}
