The SplQueue::dequeue() function is an inbuilt function in PHP which is used to dequeues the node from the queue.
Syntax:
mixed SplQueue::dequeue()
Parameters: This function does not accept any parameter.
Return Value: This function return the value of the dequeued node.
Below programs illustrate the SplQueue::dequeue() function in PHP:
Program 1:
<?php // Create a new empty queue $gfg = new SplQueue(); $gfg[] = 1; $gfg[] = 2; $gfg[] = 3; // Dequeue element echo $gfg->dequeue() . "\n"; echo $gfg->dequeue() . "\n"; ?> |
Output:
1 2
Program 2:
<?php // Create some fixed size array $gfg = new SplQueue(); $gfg[] = 1; $gfg[] = 5; $gfg[] = 1; $gfg[] = 11; $gfg[] = 15; $gfg[] = 17; foreach ($gfg as $elem) { echo $elem . "\n"; } $gfg->dequeue(); $gfg->dequeue(); $gfg->dequeue(); // Print result after dequeue foreach ($gfg as $elem) { echo "dequeue: " . $gfg->dequeue() . "\n"; } ?> |
Output:
1 5 1 11 15 17 dequeue: 11 dequeue: 15 dequeue: 17
Reference: https://www.php.net/manual/en/splqueue.dequeue.php
