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<?php
namespace Event;
class ListenerQueue
{
private $listeners = [];
/**
* Add listener to queue with priority
*
* @param callable $callback
* @param int $priority
* @return void
*/
public function add($callback, $priority)
$this->eject($callback);
$this->listeners[] = [
'callback' => $callback,
'priority' => $priority
];
$this->lsort();
}
* Get listeners array
* @return array
public function get()
return $this->listeners;
* Remove listener from listeners
* @return bool true on success false on failure
public function eject($callback)
foreach ($this->listeners as $key => $value) {
$finded = in_array($callback, $value, true);
if ($finded) {
unset($this->listeners[$key]);
* Sorting listeners in priority
private function lsort()
uasort($this->listeners, function ($a, $b) {
if ($a['priority'] == $b['priority']) {
return 0;
return ($a['priority'] > $b['priority']) ? -1 : 1;
});
Folleah /
psr7-event-emitter
