3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump( 'a' + 'b' );
Output for 7.1.0
Warning: A non-numeric value encountered in /in/RvYX4 on line 3 Warning: A non-numeric value encountered in /in/RvYX4 on line 3 int(0)
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
int(0)