PHP | ArrayObject unserialize() Function

The ArrayObject::unserialize() function is an inbuilt function in PHP which is used to unserializes the serialized ArrayObject.

Syntax:

void ArrayObject::unserialize( string $serialized )

Parameters: This function accepts single parameter $serialized which holds the serialized ArrayObject.

Return Value: This function returns the unserialized ArrayObject.

Below program illustrates the ArrayObject::unserialize() function in PHP:

Program:

<?php
// PHP program to illustrate the
// ArrayObject::unserialize() function

// Declare an associative array
$arr = array(
    "a" => "Welcome",
    "b" => "to",
    "c" => "GeeksforGeeks"
);

// Create array object
$arrObject = new ArrayObject($arr);

// Use ArrayObject::serialize() function
$serialize1 = serialize($arrObject);

// Use ArrayObject::unserialize() function
$serialize2 = unserialize($serialize1);

// Display the result
var_dump($serialize1);
var_dump($serialize2);

?>

Output:

string(113) "C:11:"ArrayObject":89:{
    x:i:0;a:3:{
        s:1:"a";s:7:"Welcome";
        s:1:"b";s:2:"to";
        s:1:"c";s:13:"GeeksforGeeks";
    }
    ;m:a:0:{}
}"
object(ArrayObject)#2 (1) {
  ["storage":"ArrayObject":private]=>
  array(3) {
    ["a"]=>
    string(7) "Welcome"
    ["b"]=>
    string(2) "to"
    ["c"]=>
    string(13) "GeeksforGeeks"
  }
}

Reference: https://www.php.net/manual/en/arrayobject.unserialize.php