Drop down Menu Select?

[ghi572000]

Hi, I'm no pro at PHP but I am trying to get a drop down menu to a authenticate before moving to the next part of the form.

 

What I want is once a selection has been made, ONLY THEN can the user move on, OTHERWISE a message echo appears.

 

This is the html menu box

 

<select size="1" name="title">

                    <option>Please Select</option>

                    <option value="Mr">Mr</option>

                    <option value="Mrs">Mrs</option>

                    <option value="Miss">Miss</option>

                    <option value="Ms">Ms</option>

                    <option value="Dr">Dr</option>

                  </select>

 

Then this is what I have in the form PHP:

 

$visitortitle = $_POST['visitortitle'];

 

if ( HOW DO I GET THIS PART TO AUTHENTICATE AN OPTION HAS BEEN SELECTED? ) {

echo "<p>Please enter a title correctly<br />before you try submitting the form again.</p>\n";

die ( '<a href="pef.html">click here go back and try again</a>' );

echo $id;}

 

If anyone can help me sort out this part of the form I can move on as the rest is working fine?

 

Thanks

Gary

 

[Alex1646]

To validate form data without it getting submitted you have to use JavaScript.

This is because PHP is interpreted on the server, so you have to make a request to the server for it to work(unless you use AJAX but that is a different story). Try looking into JavaScript form validation.

[ghi572000]

Thanks Alex, I thought I might have to use some javascript. Once I find some script to use how should I write the if PHP part or does this depend on the script I use?

[Eliasen]

is it not something like:

 

if (empty($_POST['title'])) {
echo "<p>Please enter a title correctly<br />before you try submitting the form again.</p>\n";
die ( '<a href="pef.html">click here go back and try again</a>' );
echo $id;}

 

i could be wrong.

 

 

Edit: Right, didn't read the question properly.

[ghi572000]

Okay, thanks it sounds like this is going to be a bit difficult and a bit over my head, however is there a easier way just for a selection to be made and then the user is able to move on to the next part of the form?

 

Unless anyone can show me an example of how I could use the AJAX option detailed?