3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { } echo sizeof(A);
Output for 7.2.0 - 7.3.0rc4
Warning: Use of undefined constant A - assumed 'A' (this will throw an Error in a future version of PHP) in /in/9HDb5 on line 6 Warning: sizeof(): Parameter must be an array or an object that implements Countable in /in/9HDb5 on line 6 1
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant A - assumed 'A' in /in/9HDb5 on line 6 1