3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(substr(array(1,2,3)));
based on c1WcB
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Warning: substr() expects at least 2 parameters, 1 given in /in/Wv7mR on line 3 NULL
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for substr() in /in/Wv7mR on line 3 NULL