PHP Validation: mark invalid fields red

[Hannes]

Hi,

what is the easiest way to check if an validation error occured on a particular field?
I want to have something like this:

...
If error exists for email => show red input field for email
Else => show regular input field for email
If error exists for phone => show red input field for phone
Else => show regular input field for phone
...

Please advise me how to check for errors on only particular fields.

br,
Hannes

[Ben]

Hi Hannes,

Good grief...! when I read your post I was like "oh sure, no problem" and looked at the code to find out the error return value. Turns out it only contains the error strings - not references to the error fields. So I'm afraid this can't be reliably done.

In my defense, I must have written that script over 8 years ago now.

What a pain....

If this is a show stopper for you, let me know and I'll update the script to (optionally!) return a hash of [error name field] => "error message" so you can find out which fields had errors.

It should really do it by default, but I have to worry about backward compatibility on people's systems.

Let me know!

- Ben

[Hannes]

Hey Ben,

thank you for your support!
Since it is possible to define individual error-messages for each rule, I will use them to track back the field where the error occured.

So in my example this would be:

PHP Code:

<?php

$rules[] = "required,Name,Error-Msg for Name";

$rules[] = "required,Email,Error-Msg for Email";

?>

...

<?php if (in_array("Error-Msg for Name", $errors)) {?>red mark<?php } else{?>regular<?php }?>

....

<?php if (in_array("Error-Msg for Email", $errors)) {?>red mark<?php } else{?>regular<?php }?>