Simple queue abstraction for PHP

Queue.php

<?php

namespace Queue;

class Queue {

    private $queue;

    function __construct() {
        $this->initQueue();
    }

    private function initQueue() {
        $this->queue    = Array(); 
    }

    public function enqueue($element) {
        $this->queue[]  = $element; 
    }
    
    public function dequeue() {
        $aux            = array_reverse($this->queue);
        $element        = array_pop($aux);
        $this->queue    = array_reverse($aux);

        return $element;
    }

    public function isEmpty() {
        if (empty($this->queue))    return TRUE;
        return FALSE;
    }

}

?>