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<?php $a = array(); $b = array('stupid' => array('franz', 'de leon')); $c = array_merge($a, $b); var_dump($c); abstract class Utility { public static function merge(array $a, array $b) { foreach ($b as $key => $value) { if (isset($key, $a)) { if (is_int($key)) { $a[] = $value; } elseif (is_array($value) && is_array($a[$key])) { $a[$key] = static::merge($a[$key], $value); } else { $a[$key] = $value; } } else { $a[$key] = $value; } } return $a; } } $d = Utility::merge($a, $b); var_dump($d);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } } Warning: Undefined array key "stupid" in /in/a5d0l on line 16 array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } } Notice: Undefined index: stupid in /in/a5d0l on line 16 array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } }
Output for 7.3.32 - 7.3.33
array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } } array(1) { ["stupid"]=> array(2) { [0]=> string(5) "franz" [1]=> string(7) "de leon" } }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STATIC in /in/a5d0l on line 17
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/a5d0l on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/a5d0l on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/a5d0l on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/a5d0l on line 9
Process exited with code 255.

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