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PHP SplDoublyLinkedList unserialize () function

Syntax:
void SplDoublyLinkedList::unserialize (string $serialized)
Parameters:This function takes one parameter, $serialized,which contains the serialized string.Return value:This function does not return no value.The following programs illustrate the SplDoublyLinkedList::unserialize() function in PHP:
Program 1:  
// Declare empty SplDoublyLinkedList $list = new SplDoublyLinkedList();  
// Use the SplDoublyLinkedList::push() function for
// add elements to SplDoublyLinkedList $list -> push (1); $list -> push (2); $list -> push (3); $list -> push (8); $list -> push (5);  
// Use the SplDoublyLinkedList::serialize() function
// to serialize the object $serialize = serialize ( $list ); echo $serialize . "" ;  
// Use the SplDoublyLinkedList::unserialize() function
// to deserialize the object $unserialze = unserialize ( $serialize ); print_r ( $unserialze );  
?>
Exit:
C: 19 : "SplDoublyLinkedList": 29: {i: 0;: i: 1;: i: 2;: i: 3;: i: 8;: i: 5;} SplDoublyLinkedList Object ([flags: SplDoublyLinkedList: private] = > 0 [dllist: SplDoublyLinkedList: private] = > Array ([0] = > 1 [1] = > 2 [2] = > 3 [3] = > 8 [4] = > 5) )
Program 2:  
// Declare an empty SplDoublyLinkedList $list = new SplDoublyLinkedList();  
// Use the SplDoublyLinkedList::add() function
// add an item to the list $list -> add (0, "Welcome" ); $list -> add (1, " to " ); $list -> add (2, " GeeksforGeeks " ); $list -> add (3, " A " ); $list -> add (4, ’ Computer’ ); $list -> add (5, " Science " ); $list -> add (6, ’ Portal’ );  
// Use the SplDoublyLinkedList::serialize() function
// to serialize the object $serialize = serialize ( $list ); echo $serialize . "" ;  
// Use the SplDoublyLinkedList::unserialize() function
// to deserialize the object $unserialze = unserialize ( $serialize ); print_r ( $unserialze );  
?>
Exit: C: 19: ”SplDoublyLinkedList”: 105: {i: 0;: s: 7: ”Welcome”;: s: 2: ”to”;: s: 13: ”GeeksforGeeks”;: s: 1: ”A” ;: s: 8: ”Computer”;: s: 7: ”Science”;: s: 6: ”Portal”;}
SplDoublyLinkedList Object
(
[flags: SplDoublyLinkedList: private ] = > 0
[dllist: SplDoublyLinkedList: private] = > Array
(
[0] = > Welcome
[1] = > to [2] = > GeeksforGeeks
[3] = > A
[4] = > Computer
[5] = > Science
[6] = > Portal
)) Link:https://www.php.net/manual/en/spldoublylinkedlist.unserialize.php

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