AndrewAK

This Link refers to a file that is in the main folder 

<link rel="stylesheet" type="text/css" href="mystyle.css">

What is the proper path used when referencing a file located in a sub-folder?

Thank you Gabrielphp, that worked perfectly. I tested for the negative.

if(!is_numeric($phonenum1)){ $phonenum1Err="Only numbers0-9"}

Here is a snippet of my code. It works fine, but checks for upper and lower case letters.

if (empty($_POST["lastname"])) {
            $lastnameErr = "Lastname is required";
        } else {
            $lastname = test_input($_POST["lastname"]);
            if (!preg_match("/^[a-zA-Z ]*$/",$lastname)) {
                $lastnameErr = "Only letters and white space allowed";
                }
    }

I need this to check for numbers only IE: 0-9 for a phone number format.

Thank you