3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(5 => 3, 2 => 8); $b = (object) $a; $c = '5'; echo $b->$c;
Output for 4.3.0 - 4.4.9, 7.2.0
3
Output for 5.2.6 - 7.1.10
Notice: Undefined property: stdClass::$5 in /in/4UA5U on line 7
Output for 5.0.0 - 5.2.5
Notice: Undefined property: stdClass::$5 in /in/4UA5U on line 7