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run code in 150+ php & hhvm versions
Bugs & Features
<?php $required = ['k1', 'k2']; $data = [ 'k1' => 'v1', ]; $required == array_intersect($required, array_keys($data)); var_dump($required);
Output for 5.4.0 - 7.1.0
array(2) { [0]=> string(2) "k1" [1]=> string(2) "k2" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Afmqq 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/Afmqq on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Afmqq on line 3
Process exited with code 255.