PHP | SplDoublyLinkedList pop() Function
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 accepts any parameters.
Return Value: This function returns the value of poped node in doubly linked list.
Below programs illustrate the SplDoublyLinkedList::pop() function in PHP:
Program 1:
<?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 listvar_dump($list->pop());var_dump($list->pop()); ?> |
Output:
string(1) "G" string(5) "Geeks"
Program 2:
<?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 listvar_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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