SplQueue::__construct
(PHP 5 >= 5.3.0, PHP 7)
SplQueue::__construct — Constructs a new queue implemented using a doubly linked list
Description
SplQueue::__construct ( void )
This constructs a new empty queue.
Note: This method automatically sets the iterator mode to SplDoublyLinkedList::IT_MODE_FIFO.
Parameters
This function has no parameters.
Return Values
No value is returned.
Examples
Example #1 SplQueue::__construct() example
<?php
$q?=?new?SplQueue();
$q[]?=?1;
$q[]?=?2;
$q[]?=?3;
foreach?($q?as?$elem)??{
?echo?$elem."\n";
}
?>The above example will output:
1
2
3Example #2 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;
????//?...
}
?>← SplQueue
SplQueue::dequeue →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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