CiviCRM Community Forums (archive)

Hi,

I start with civicrm on wordpress.
Does-it possible to have a specific field's validation in form?

I would like verify a key for "legal indentity" in "organisation".

Thank you.

The verification's script is:

//Fonction verif
function isLuhnNum($num)
{
   //longueur de la chaine $num
   $length = strlen($num);
   
   //resultat de l'addition de tous les chiffres
   $tot = 0;
   for($i=$length-1;$i>=0;$i--)
   {
      $digit = substr($num, $i, 1);
      
      if ((($length - $i) % 2) == 0)
      {
         $digit = $digit*2;
         if ($digit>9)
         {
            $digit = $digit-9;
         }
      }
      $tot += $digit;
   }
   
   return (($tot % 10) == 0);
}