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