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ffxpwns

Hey, I have some code for an "enter email to receive a newsletter" thing. The code as is works exactly how the client wants it, but I also want to implement this email validation. Preferably the 'advanced' one. How would I go about doing that? The code for the emailer I already have working is below. Thank you!

[index.html]


<body>
<div id="main">
  <div id="contact">
  <h1>Sign up to receive Auction notifications</h1>
    <form action="emailer.php" method="post">
     <input type="text" name="email" id="email" placeholder="yourname@email.com" />
    <input type="image" name="submit" src="images/submit.jpg" width="146px" height="20px" value="Submit">
    </form>

  </div>
</div>
</body>

And heres the emailer.php


<?php
      
       
       $email = trim(strip_tags($_POST['email']));
       

       
       $subject = "Contact form submitted!";
       $to = 'BlankingOutMyEmail@mail.com';

       $body = <<<HTML
$message
HTML;

       $headers = "From: $email\r\n";
       $headers .= "Content-type: text/html\r\n";

       
       mail($to, $subject, $body, $headers);
		
		header('Location: thanks.html');
?>

ffxpwns

Also, thanks.html shouldn't matter, right?

seanroberts

I did not check your code. But I below is a simple check for if the email is valid. If the validation returns true the message is created and sent. Otherwise, they are sent back to the index page.


<?php
       
       $email = trim(strip_tags($_POST['email']));
       //test if email is valid
	 //if it is continue, otherwise send them back to the index page
	 if(isValidEmail($email)){

       
      	 	  $subject = "Contact form submitted!";
       	 	  $to = 'BlankingOutMyEmail@mail.com';

       $body = <<<HTML
$message
HTML;

       	 $headers = "From: $email\r\n";
        	  $headers .= "Content-type: text/html\r\n";

       
        	 mail($to, $subject, $body, $headers);
		
	 	 header('Location: thanks.html');
	}else{
	 	 
 	 	 header('Location: index.html');
	}

function isValidEmail($email)
{
       //Perform a basic syntax-Check
       //If this check fails, there's no need to continue
       if(!filter_var($email, FILTER_VALIDATE_EMAIL))
       {
               return false;
       }

       //extract host
       list($user, $host) = explode("@", $email);
       //check, if host is accessible
       if (!checkdnsrr($host, "MX") && !checkdnsrr($host, "A"))
       {
               return false;
       }

       return true;
}

?>

hope this helps

cybershot

well, I would think it would work like so



<?php
$email= trim(strip_tags($_POST['email']));
if (isValidEmail($email))
{
       $subject = "Contact form submitted!";       $to = 'BlankingOutMyEmail@mail.com';       $body = <<<HTML$messageHTML;       $headers = "From: $email\r\n";       $headers .= "Content-type: text/html\r\n";              mail($to, $subject, $body, $headers);				header('Location: thanks.html');
}
else
{
        //make an error page in case it fails
       header('Location: error.html');
}

//Check-Function
function isValidEmail($email)
{
       //Perform a basic syntax-Check
       //If this check fails, there's no need to continue
       if(!filter_var($email, FILTER_VALIDATE_EMAIL))
       {
               return false;
       }

       //extract host
       list($user, $host) = explode("@", $email);
       //check, if host is accessible
       if (!checkdnsrr($host, "MX") && !checkdnsrr($host, "A"))
       {
               return false;
       }

       return true;
}
?>

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Make sure email field is valid?