array_merge_recursive(array('key' => 'org value'), array('key' => 'new value')); * => array('key' => array('org value', 'new value')); * * arrayMergeRecursiveDistinct does not change the datatypes of the values in the arrays. * Matching keys' values in the second array overwrite those in the first array, as is the * case with array_merge, i.e.: * * array_merge_recursive_distinct(array('key' => 'org value'), array('key' => 'new value')); * => array('key' => array('new value')); * * @template T of Array * @param T $array1 * @param array $array2 * @return T * @author Daniel * @author Gabriel Sobrinho */ public static function arrayMergeRecursiveDistinct( array $array1, array $array2 ): array { $merged = $array1; foreach ( $array2 as $key => $value ) { if ( is_array( $value ) && isset( $merged [ $key ] ) && is_array( $merged [ $key ] ) ) { $merged [ $key ] = self::arrayMergeRecursiveDistinct( $merged [ $key ], $value ); } else { $merged [ $key ] = $value; } } return $merged; } }