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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr1 = [ 2 => [ 1, 2, 3 ] ]; $arr2 = [ 3 => [ 2, 3, 4 ] ]; $arr3 = array_merge($arr1, $arr2); var_dump($arr3);
Output for 5.4.0 - 7.1.0
array(2) { [0]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } [1]=> array(3) { [0]=> int(2) [1]=> int(3) [2]=> int(4) } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/s2pJC 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/s2pJC on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/s2pJC on line 3
Process exited with code 255.