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run code in 150+ php & hhvm versions
Bugs & Features
<?php function arrayMergeRecursiveDistinct(array $first, array $second) { foreach ($second as $idx => $value) { if (is_integer($idx)) { $first[] = $value; } else { if (!array_key_exists($idx, $first)) { $first[$idx] = $value; } else { if (is_array($value)) { $first[$idx] = arrayMergeRecursiveDistinct($first[$idx], $value); } else { $first[$idx] = $value; } } } } return $first; } $a = ['a' => [1,2,3], 'b' => ['c' => ['d' => 'e']]]; $b = ['a' => [1,2,3,4], 'b']; print_r(arrayMergeRecursiveDistinct($b, $a)); print_r(array_replace_recursive($b, $a));
based on 1FgAM
Output for 5.4.0 - 7.1.0
Array ( [a] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 1 [5] => 2 [6] => 3 ) [0] => b [b] => Array ( [c] => Array ( [d] => e ) ) ) Array ( [a] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 ) [0] => b [b] => Array ( [c] => Array ( [d] => e ) ) )
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/IBbIL on line 25
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/IBbIL on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/IBbIL on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/IBbIL on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/IBbIL on line 4
Process exited with code 255.