将复选框值添加到数据库中的多个字段

I have a checkbox that if checked stores the value "testing" to the field "checkbox" om my database.

<input type="checkbox" name="checkbox" value="testing">

I would like to store two values, on two fields on my database, from one checkbox.

If checked:
store value testing to the checkbox field
store value testing2 to the checkbox2 field

Is this possible?

Thanks in advance

<input type="checkbox" name="checkbox" <?php if($val=="testing"): echo "value='testing'&nbsp; echo checked='on'" ?>">

  <input type="checkbox2" name="checkbox2" <?php if($val=="testing2"): echo "value='testing2'&nbsp; echo checked='on'" ?>">

Hope this is what you are looking for..