3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = [-1 => 'test', 'code', 'name' => 'value']; $b = array(1 => 'data', 'name' => 'empty'); var_dump($a + $b);
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(4) { [-1]=> string(4) "test" [0]=> string(4) "code" ["name"]=> string(5) "value" [1]=> string(4) "data" }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/A3CTE on line 3
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/A3CTE on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/A3CTE on line 3
Process exited with code 255.