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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('b' => ''); var_dump(isset($a['b']), empty($a['b'])); $b = new ArrayObject($a); var_dump(isset($b['b']), empty($a['b']));
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) bool(true) bool(true) bool(true)
Output for 4.3.2 - 4.4.9
bool(true) bool(true) Fatal error: Cannot instantiate non-existent class: arrayobject in /in/O5OV1 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
bool(true) bool(true) Fatal error: Cannot instantiate non-existent class: arrayobject in /in/O5OV1 on line 5