3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "2d9"; $a++; $a++; echo $a; $a = "2d9"; $a+=2; echo $a; $a = "2d9"; $a++; echo $a;
Output for 7.1.0 - 7.3.0rc6
3 Notice: A non well formed numeric value encountered in /in/5mGWA on line 4 42e0
Output for 4.3.0 - 7.0.20
342e0