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run code in 200+ php & hhvm versions
Bugs & Features
<?php $dateParts = ['year', 'month']; $timeParts = ['hour']; $parts = ['date' => $dateParts, 'time' => $timeParts]; var_dump(array_reduce($parts, array_merge, []));
Output for 7.2.5 - 7.3.0alpha1
Warning: Use of undefined constant array_merge - assumed 'array_merge' (this will throw an Error in a future version of PHP) in /in/tobWE on line 9 array(3) { [0]=> string(4) "year" [1]=> string(5) "month" [2]=> string(4) "hour" }
Output for 5.4.0 - 7.1.7
Notice: Use of undefined constant array_merge - assumed 'array_merge' in /in/tobWE on line 9 array(3) { [0]=> string(4) "year" [1]=> string(5) "month" [2]=> string(4) "hour" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/tobWE 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/tobWE on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/tobWE on line 3
Process exited with code 255.