3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = new stdClass; $storage = new SplObjectStorage; $storage[$foo] = $foo; var_dump(isset($storage[$foo])); var_dump($storage[$foo]); unset($storage[$foo]); var_dump(isset($storage[$foo]));
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(true) object(stdClass)#1 (0) { } bool(false)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.2.17
Fatal error: Cannot use object of type SplObjectStorage as array in /in/fSELh on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'SplObjectStorage' not found in /in/fSELh on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: splobjectstorage in /in/fSELh on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: splobjectstorage in /in/fSELh on line 5