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run code in 150+ php & hhvm versions
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<?php $arr = array('a','b','c','d'); $assoc_arr = array_reduce($arr, function ($result, $item) { $result[$item] = (($item == 'a') || ($item == 'c')) ? 'yes' : 'no'; return $result; }, array()); var_dump($assoc_arr);
Output for 5.3.0 - 5.6.25, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { ["a"]=> string(3) "yes" ["b"]=> string(2) "no" ["c"]=> string(3) "yes" ["d"]=> string(2) "no" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/FoFjT 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 T_FUNCTION in /in/FoFjT on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/FoFjT on line 2
Process exited with code 255.