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run code in 200+ php & hhvm versions
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<?php $arr = ["key" => "value"]; $arr1 = ["key1" => "value1"]; var_dump(array_merge($arr, $arr1));
Output for 5.4.0 - 7.2.0
array(2) { ["key"]=> string(5) "value" ["key1"]=> string(6) "value1" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/cW1O9 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/cW1O9 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/cW1O9 on line 3
Process exited with code 255.