Handling a set of FORM errors with ONE foreach loop?

Question

I have a stack of 'Select' menus / dropdowns on a PHP form on my website.

I'd like to check an option on each menu has been selected before processing the rest of the form, and wondered if I could loop through all of the fields with PHP?

Started with something like the following, but got a bit lost:

        foreach($_POST as $key => $val){
        //$errormsg.= $key." - ".$val."\n";

             if ($_POST['FIELD_NAME_HERE']){            
                     $FIELD_NAME_HERE_field = $_POST['FIELD_NAME_HERE'];
             } else {
                     $errormsg.= "<li>Please select from the FIELD_NAME_HERE options</li>";
             }

        }

Is this possible? And if so, how do I achieve this?

Thank you.

Fluffeh · Accepted Answer · 2012-09-03 08:37:53Z

1

I think this might work for you:

foreach($_POST as $key => $val)
{
//$errormsg.= $key." - ".$val."\n";

    if ($val)
    {            
        ${$key.'_field'} = $val;
    } 
    else 
    {
        $errormsg.= "<li>Please select from the $key options</li>";
    }
}

It's probably not how I would have approached handling form errors though.

edited Sep 3, 2012 at 8:37

answered Sep 3, 2012 at 8:28

Fluffeh

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5 Comments

michaelmcgurk Over a year ago

It seems this ${$key}_field = $val; bit is giving me an error.

michaelmcgurk Over a year ago

Out of interest, how would you handle it different to mine? Totally open to ideas here. Thanks again :-)

michaelmcgurk Over a year ago

Wooooooooooop!!! It works :-D Guess I wasn't too far off then. Many thanks Fluffeh!!!!

Fluffeh Over a year ago

@mcgarriers Okay, try that syntax - it's not giving me any errors in either eclipse or when I run the code (not testing it with post data though). I would be focusing on doing all the verification that I could before the form was submitted - then checking each one individually - and if needed outputting a seperate error message for each problem. Having said that, I have never had to use a form with loads of individual elements.

michaelmcgurk Over a year ago

I've got some jQuery processing the form but this is a really good fallback should the JS fail/user disabled JS.

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