3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $required = array_diff_key("a" => true, 'b'=>true); $seen = array("a"=>true, "b" => true, "c"=>true); $result = array_intersect($required, $seen); print_r($result);
based on 5W6Nd
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/T4fpK on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /in/T4fpK 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 T_DOUBLE_ARROW in /in/T4fpK on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/T4fpK on line 3
Process exited with code 255.