Question

I have a form with 4 required inputs. They are being passed into the url if they are missing.

If all 4 is missing it’ll look like:

?required[0]=field_name&required[1]=field_email&required[2]=field_number&required[3]=field_desc

If the first one field_name is missing, the array will be pushed forward one, so field_email will be [0]. Which means that the array is always in the 0,1,2,3 order.

What I want to find out is how can I retrieve the information so I can put a red border around the input that is missing? What I need is something like:

while ($i=0,$i<=3,$i++) {
    do ($requiredArray[i] == 'field_email') {
        echo '<script type="text/javascript">$("#name)".css("border","1px solid #ff0000");</script>';
    } while ();
    endwhile;
}

Answer 1

You can also use array_search in php as follows :

array_search("field_name",$_GET['required']);

if the value is greater than or equal to zero then you can do the processing.

Like, you can have all the values in a array variable say $required_array and you can use foreach loop like as follows:

foreach($required_array as $val){
 if(!(array_search($val,$_GET['required'])>=0)){
   echo '<script type="text/javascript">$("#'.$val.')".css("border","1px solid #ff0000");</script>';
 }
}