SplQueue::__construct

(PHP 5 >= 5.3.0, PHP 7)

SplQueue::__constructConstructs a new queue implemented using a doubly linked list

Description

SplQueue::__construct ( )

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
3

Example #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;
    // ...
}
?>

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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/splqueue.construct.php