registry_unset
php
bool registry_unset(string $rejestr)Deletes the registry named $rejestr. Returns true if the registry existed and was deleted successfully, or false if it did not exist or could not be deleted.
php
$unset = registry_unset("my registry");
if ($unset == true) {
print('The registry has been deleted');
} elseif ($unset == false) {
print('Something went wrong');
}Result:
The registry has been deleted