note 92220 modified in function.array-replace-recursive by danbrown

This might help out people who don't have 5.3 running: <?php function array_join($original) { // Get array arguments $arrays = func_get_args(); // Loop through arrays foreach ($arrays as $array) { // Loop through array key/value pairs foreach ($array as $key => $value) { // Value is an array if (is_array($value)) { // Traverse the array; replace or add result to original array $original[$key] = array_join($array[$key], $original[$key]); } // Value is not an array else { // Replace or add current value to original array $original[$key] = $value; } } } // Return the joined array return $original; } // Example $first = array('one' => '1', 'two' => '2', 'three' => '3'); $second = array('one' => 'one', 'two' => '2', 'three' => 'three', 'four' => '4'); print_r(array_join($first, $second)); ?> Output: Array ( [one] => one [two] => 2 [three] => three [four] => 4 ) --was-- This might help out people who don't have 5.3 running: <? function array_join($original) { // Get array arguments $arrays = func_get_args(); // Loop through arrays foreach ($arrays as $array) { // Loop through array key/value pairs foreach ($array as $key => $value) { // Value is an array if (is_array($value)) { // Traverse the array; replace or add result to original array $original[$key] = array_join($array[$key], $original[$key]); } // Value is not an array else { // Replace or add current value to original array $original[$key] = $value; } } } // Return the joined array return $original; } // Example $first = array('one' => '1', 'two' => '2', 'three' => '3'); $second = array('one' => 'one', 'two' => '2', 'three' => 'three', 'four' => '4'); print_r(array_join($first, $second)); ?> Output: Array ( [one] => one [two] => 2 [three] => three [four] => 4 ) http://php.net/manual/en/function.array-replace-recursive.php