Jamm\Memory\Shm\SHMObject::select_fx PHP Метод

    public function select_fx($fx, $get_array = false)
    {
        $auto_unlocker = NULL;
        if (!$this->mutex->get_access_read($auto_unlocker)) {
            return false;
        }
        $map = $this->mem_object->read('map');
        $arr = array();
        foreach ($map as $index => &$zs) {
            if (!$zs[self::map_key_serialized]) {
                continue;
            }
            $s = $this->read($index);
            if (empty($s)) {
                continue;
            }
            if ($fx($s, $index) === true) {
                if (!$get_array) {
                    return $s;
                } else {
                    $arr[$index] = $s;
                }
            }
        }
        if (!$get_array || empty($arr)) {
            return false;
        } else {
            return $arr;
        }
    }