3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php [ 1 => function ($a) { echo $a; } ][1]("foo");
Output for 7.0.0 - 7.1.0
foo
Output for 5.5.24 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/u9NNj on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.4.45
Parse error: syntax error, unexpected '[' in /in/u9NNj on line 2
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/u9NNj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/u9NNj on line 2
Process exited with code 255.