Validating Drop Down Menu

[gold2040]

Hey

How would you validate a drop down menu using PHP. I know how to do it with Javascript

Cheers

Tom Evans

[djr33]

Assuming your dropdown is named "dropdown" and the form's method is "post"...

PHP Code:

<?php
if ($_POST['dropdown'] == "value1") {
   //do stuff like:
   echo "it works!";
   }
else {
   //do something else like:
   echo "error";
   }
?>

But... what do you want, specifically?

Lots can be done to verify....

At least that's a basic example.

php.net has lot of info about various php things if you want to learn... look up "form handling"...

[gold2040]

Hey

Cheers for that. I mean like you just have to select 1 option out the dropdown menu

Tom Evans

[djr33]

Well... hate to point out the obvious... but it's worthless to have a dropdown menu "choice" if one is required... it's like an election with one candidate

Anyway... the above will do what you want.

Just for the "do stuff" make it continue in your script, and for else use, maybe, die("error. please try again.");

die() stops the page from loading at that point and outputs the string in the parentheses. You can use html in there too, like a JS-based back link.


that's the basics... not sure what funtionality you want if it's right or if it's wrong.

[Twey]

it's like an election with one candidate

Totally pointless, but makes people think they have some choice in the matter?

We've had those for decades.

[djr33]

quite true.

also, I'm guessing this might be related to "do you accept these terms: yes/no", in which case it's totally valid.

still worth pointing out, though