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
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