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run code in 150+ php & hhvm versions
Bugs & Features
<?php function arrayMergeRecursive($arraySource, $arrayDestination) { $temp = array(); foreach ($arraySource as $key => $value) { if (is_array($value)) { $associatedDestination = array(); if (isset($arrayDestination[$key])) { $associatedDestination = $arrayDestination[$key]; } $temp[$key] = arrayMergeRecursive($value, $associatedDestination); continue; } if (isset($arrayDestination[$key])) { $temp[$key] = $arrayDestination[$key]; } else { $temp[$key] = $arraySource[$key]; } } return $temp; } $source = ["a" => 1, "b" => 2, "c" => ["x" => 1, "y" => 2]]; $x = ["c" => 1, "d" => 10, "a" => 5]; var_dump(arrayMergeRecursive($source, $x)); var_dump(array_replace_recursive($source, $x));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { ["a"]=> int(5) ["b"]=> int(2) ["c"]=> array(2) { ["x"]=> int(1) ["y"]=> int(2) } } array(4) { ["a"]=> int(5) ["b"]=> int(2) ["c"]=> int(1) ["d"]=> int(10) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/4Hmlh on line 29
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/4Hmlh on line 29
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4Hmlh on line 29
Process exited with code 255.