The SplObjectStorage::offsetUnset() function is an inbuilt function in PHP that is used to set the object from the storage.
Syntax:
void SplObjectStorage::offsetUnset( $object )
Parameters: This function accepts a single parameter $object which specifies the to be unset.
Return Value: This function does not return any value.
The below programs illustrate the SplObjectStorage::offsetUnset() function in PHP.
Program 1:
php
<?php // Create an empty SplObjectStorage $str = new SplObjectStorage; $obj = new StdClass; // Set offset $obj to $str $str->attach($obj, "neveropen"); // Print Result before var_dump(count($str)); // Unset object from storage $str->offsetUnset($obj); // Print Result after var_dump(count($str)); ?> |
Output:
int(1) int(0)
Program 2:
php
<?php // Create an Empty SplObjectStorage $str = new SplObjectStorage(); $obj1 = new StdClass; $obj2 = new StdClass; $obj3 = new StdClass; $obj4 = new StdClass; $str->attach($obj1, "neveropen"); $str->attach($obj2, "GFG"); $str->attach($obj3); $str->attach($obj4, "DSA"); // Print Result before var_dump(count($str)); // Unset object from storage $str->offsetUnset($obj1); $str->offsetUnset($obj2); $str->offsetUnset($obj3); $str->offsetUnset($obj4); // Print Result after var_dump(count($str)); ?> |
Output:
int(4) int(0)
Reference: https://www.php.net/manual/en/splobjectstorage.offsetunset.php
