PHP | SplDoublyLinkedList serialize() Function
The SplDoublyLinkedList::serialize() function is an inbuilt function in PHP which is used to serializes the storage.
Syntax:
string SplDoublyLinkedList::serialize( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns the serialized string.
Below programs illustrate the SplDoublyLinkedList::serialize() function in PHP:
Program 1:
<?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 serialize() function $serialize = serialize($list);   echo $serialize; ?> |
Output:
C:19:"SplDoublyLinkedList":29:{i:0;:i:1;:i:2;:i:3;:i:8;:i:5;}
Program 2:
<?php   // Declare an empty SplDoublyLinkedList $list = new SplDoublyLinkedList();   // Use SplDoublyLinkedList::add() function // to add the element into the list $list->add(0, "Welcome"); $list->add(1, "to"); $list->add(2, "zambiatek"); $list->add(3, "A"); $list->add(4, 'Computer'); $list->add(5, "Science"); $list->add(6, 'Portal');   // Use serialize() function $serialize = serialize($list);   echo $serialize; ?> |
Output:
C:19:"SplDoublyLinkedList":105:{i:0;:s:7:"Welcome";:s:2:
"to";:s:13:"zambiatek";:s:1:"A";:s:8:"Computer";
:s:7:"Science";:s:6:"Portal";}
Reference: https://www.php.net/manual/en/spldoublylinkedlist.serialize.php
