The SplObjectStorage::unserialize() function is an inbuilt function in PHP which is used to unserialize the storage from its serialize string representation.
Syntax:
void SplObjectStorage::unserialize( $serilize )
Parameters: This function accepts a single parameter $serialize which specifies the string serialization of the storage.
Return Value: This function does not return any value.
Below programs illustrate the SplObjectStorage::unserialize() function in PHP:
Program 1:
<?php $obj1 = new StdClass; // Create an empty SplObjectStorage $gfg1 = new SplObjectStorage(); $gfg1 [ $obj1 ] = "Geeks" ; // Use unserialize() function $gfg1 ->unserialize( $gfg1 ->serialize()); print_r( $gfg1 ); ?> |
Output:
SplObjectStorage Object ( [storage:SplObjectStorage:private] => Array ( [00000000494fcd4d000000001f544823] => Array ( [obj] => stdClass Object ( ) [inf] => Geeks ) [00000000494fcd4f000000001f544823] => Array ( [obj] => stdClass Object ( ) [inf] => Geeks ) ) )
Program 2:
<?php $obj1 = new StdClass; $obj2 = new StdClass; // Create an empty SplObjectStorage $gfg1 = new SplObjectStorage(); $gfg1 [ $obj1 ] = "Geeks" ; // Create an empty SplObjectStorage $gfg2 = new SplObjectStorage(); $gfg2 [ $obj1 ] = "GFG" ; $gfg2 [ $obj2 ] = "GeeksClasses" ; // Use unserialize() function $gfg1 ->unserialize( $gfg2 ->serialize()); var_dump( count ( $gfg1 )); // Use unserialize() function $gfg2 ->unserialize( $gfg1 ->serialize()); var_dump( count ( $gfg2 )); ?> |
Output:
int(3) int(5)
Reference: https://www.php.net/manual/en/splobjectstorage.unserialize.php
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