The SplDoublyLinkedList::pop() function is an inbuilt function in PHP which is used to pop the node from the end of the doubly linked list.
Syntax:
mixed SplDoublyLinkedList::pop( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns the value of a popped node in the doubly linked list. The below programs illustrate the SplDoublyLinkedList::pop() function in PHP.
Program 1:
php
<?php // Declare an empty SplDoublyLinkedList $list = new \SplDoublyLinkedList;
// Use SplDoublyLinkedList::add() function to // add elements to the SplDoublyLinkedList $list ->add(0, 30);
$list ->add(1, 20);
$list ->add(2, 30);
$list ->add(3, "Geeks" );
$list ->add(4, 'G' );
// Use SplDoublyLinkedList::pop() function // to remove elements from doubly linked list var_dump( $list ->pop());
var_dump( $list ->pop());
?> |
Output:
string(1) "G" string(5) "Geeks"
Program 2:
php
<?php // Declare an empty SplDoublyLinkedList $list = new \SplDoublyLinkedList();
// Use SplDoublyLinkedList::push() function to // add elements to the SplDoublyLinkedList $list ->push(1);
$list ->push(2);
$list ->push(3);
$list ->push(8);
$list ->push(5);
// Use SplDoublyLinkedList::pop() function // to remove elements from doubly linked list var_dump( $list ->pop());
var_dump( $list ->pop());
var_dump( $list ->pop());
?> |
Output:
int(5) int(8) int(3)
Reference: https://www.php.net/manual/en/spldoublylinkedlist.pop.php