3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php declare(x=1 );
Output for 5.6.7 - 5.6.28, 7.0.0 - 7.1.0
Warning: Unsupported declare 'x' in /in/iXNBL on line 3
Output for hhvm-3.10.0 - 3.12.0
Output for 5.3.0 - 5.5.35
Warning: Unsupported declare 'x' in /in/iXNBL on line 2