3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php assert( strlen(null . "abc") === 3, "String concatenation test failed" ); //...
based on ntKdZ
Output for 5.4.8 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 5.3.0 - 5.4.7
Warning: assert() expects exactly 1 parameter, 2 given in /in/jVkkG on line 6
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.2.17
Warning: Wrong parameter count for assert() in /in/jVkkG on line 6
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/jVkkG on line 8
Process exited with code 255.