+<input type="text" name="num[]" maxlength="1" size="1">(<input type="text" name="num[]" maxlength="3" size="3">)<input type="text" name="num[]" maxlength="3" size="3">-<input type="text" name="num[]" maxlength="2" size="2">-<input type="text" name="num[]" maxlength="2" size="2">
Array { [0] => x [1] => xxx [2] => xxx [4] => xx [5] => xx }