3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = new stdClass(); $a->{1} = 'Y'; $prop = 1; var_dump($a->$prop);
Output for 5.0.0 - 7.1.0
string(1) "Y"
Output for 4.3.3 - 4.4.9
Fatal error: Property name must be a string in /in/Lk9uS on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.2

Process exited with code 139.