3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $form = ['foo'=>'bar']; echo "baz:$foo[bar]";
Output for 5.4.0 - 7.1.0
Notice: Undefined variable: foo in /in/Zeq7V on line 6 baz:
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Zeq7V on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Zeq7V on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Zeq7V on line 4
Process exited with code 255.