Thank you for taking the time to post, but I'm not the original poster
I wouldn't have mentioned it except you did it again on a different post.
And, err, yes, I knew that. I just wondered why the original poster didn't try it for himself. I thought it might be educational to learn to use var_dump, sort of reduce the overhead of the next 50 questions if he figures out something for himself (and var_dump is particularly useful).
So, mDennis10, if you're listening, it would be helpful if you at least tried a solution before asking for help. And just to show there's no ill feeling, be aware that some inputs (such as checkboxes) do NOT return a blank string if they are not checked, they don't return anything (so $_POST['myCheckbox'] is undefined if the box isn't checked).