SplQueue::__construct()
(PHP 5 >= 5.3.0, PHP 7)
Constructs a new queue implemented using a doubly linked list
说明
SplQueue::__construct(void)This constructs a new empty queue.
Note:This method automatically sets the iterator mode to SplDoublyLinkedList::IT_MODE_FIFO.
参数
此函数没有参数。
返回值
没有返回值。
范例
SplQueue::__construct() example
<?php $q = new SplQueue(); $q[] = 1; $q[] = 2; $q[] = 3; foreach ($q as $elem) { echo $elem."\n"; } ?>
以上例程会输出:
1 2 3
Efficiently handling tasks with SplQueue
<?php $q = new SplQueue(); $q->setIteratorMode(SplQueue::IT_MODE_DELETE); // ... enqueue some tasks on the queue ... // process them foreach ($q as $task) { // ... process $task ... // add new tasks on the queue $q[] = $newTask; // ... } ?>