Contact form header trouble

[zachcm]

Hello everyone,

I wrote a PHP contact script with form validation in it and everything, and it works. The thing is, I want to be able to hit reply from the message that was sent to me. I'm not sure how to make the email look like it was sent by the person who wrote the message. I assume this would be done with header definitions, but I'm not sure how to do this. Can anyone help me out? I just need a rough idea.

<?php

/* GET VARIABLES */

$name = trim($_POST['name']);
$address = trim($_POST['email']);
$number = trim($_POST['phone']);
$subject = trim($_POST['subject']);
$message = trim($_POST['message']);
$to = "me@onlyme.com";

/* TESTS */

if ($name == "your full name") {
    print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
} else if ($address == "your email address") {
    print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
} else if ($number == "phone number with area code") {
    print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
} else if ($subject == "what is this all about?") {
    print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
} else if ($to == "questions? comments? need a website? do tell us!") {
    print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
} else {

        /* CREATE MESSAGE */
        
        $email = "";
        $email .= "From: ";
        $email .= $name . " <" . $address . ">";
        $email .= "\r\n";
        $email .= "Phone: ";
        $email .= $number;
        $email .= "\r\n\r\n";;
        $email .= $message;
        
        /* SEND */
        
        mail($to, $subject, $email);
        
        /* REDIRECT */

        if (mail){
          print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=1#form\">";
        }
        else{
          print "<meta http-equiv=\"refresh\" content=\"0;URL=contact.php/?s=2#form\">";
        }
}

?>

[php_daemon]

Well, you already do that, it's From: email@example.com header.

On a side note, please do the user input validation.

[zachcm]

I tried modifying it some. This I thought should theoretically work, but it didn't. I can't figure out why.

/* HEADERS */
        
$headers = 'From: $address' . "\r\n" .
'Reply-To: $address' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
        
/* SEND */
        
mail($to, $subject, $email, $headers); 

Help, please?

[php_daemon]

Hm, do post the form itself; the code seems fine (despite the lack of validation).

[zachcm]

There's no need to post the form itself, all the variables are pulling correctly. The email is coming to me as from "$address"@cl00.gs00.gridserver.com. (I changed the numbers slightly). But everything else is coming correctly, so the header code is written wrong.

[php_daemon]

Oh right, didn't notice before, you're using single quotes and the variable within. Anything between single quotes is not parsed and is used as it is. You want to use double quotes there or break the string:

$headers = 'From: '.$address. "\r\n" .
'Reply-To: '.$address . "\r\n" .
'X-Mailer: PHP/' . phpversion();