3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php substr(""], 0, 3);
Output for 7.0.0 - 7.1.0
Parse error: syntax error, unexpected ']', expecting ',' or ')' in /in/bPilH on line 2
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: syntax error, unexpected ']', expecting ')' in /in/bPilH on line 2
Process exited with code 255.
Output for 5.3.0 - 5.6.21
Parse error: syntax error, unexpected ']' in /in/bPilH on line 2
Process exited with code 255.