[RESOLVED] form validation not working

[sheriff432]

I am a PHP newbie. My employer wants an email newsletter signup on our website. I built the form, but it is not validating. I got the script from my server, Host Gator. The script works for posting, but if you leave off the name or email, it just takes you to a blank white page.

I've never seen a form validated with the unset($_GET['do']);

here is the script: (I apologize if code entered here incorrectly. I could not find how to enter php code.)

<?php
switch (@$_GET['do'])
 {

 case "send":

  $fname = $_POST['fname'];
  $lname = $_POST['lname'];
  $femail = $_POST['femail'];
  $fsendmail = $_POST['fsendmail'];
  $secretinfo = $_POST['info'];

if (!preg_match("/\S+/",$fname))
{
  unset($_GET['do']);
  $message = "First Name required. Please try again.";
  break;
}
if (!preg_match("/\S+/",$lname))
{
  unset($_GET['do']);
  $message = "Last Name required. Please try again.";
  break;
}
if (!preg_match("/^\S+@[A-Za-z0-9_.-]+\.[A-Za-z]{2,6}$/",$femail))
{
  unset($_GET['do']);
  $message = "Primary Email Address is incorrect. Please try again.";
  break;
}


if ($secretinfo == "")
{
   $myemail = "[e-mail]";
   $emess = "First Name: ".$fname."\n";
   $emess.= "Last Name: ".$lname."\n";
   $emess.= "Email: ".$femail."\n";
   $emess.= "Comments: ".$fsendmail;
   $ehead = "From: ".$femail."\r\n";
   $subj = "An Email from ".$fname." ".$lname."!";
   $mailsend=mail("$myemail","$subj","$emess","$ehead");
   $message = "Email was sent.";
}

   unset($_GET['do']);
   header("Location: thankyounews.html");
 break;

 default: break;
 }
?>

  The form works, but if name or email is omitted, it goes to blank page instead of error notification.

Thanks for your help.

Helen:confused:

[bradgrafelman]

What "error notification" ? Your code sets some variable $message and then [man]break[/man]s out of the switch() statement.... however, there is nothing after the switch() statement, thus the script just ends.

[sheriff432]

Thank you. I think it needs and "echo" to bring up the statement that the First Name, Last Name or Email is missing. I'll keep working on it.

Thanks