Contact form does not work anymore?

It is always telling me "Please specify email" even if I fill up all the input boxes, I am not really sure how to debug it so I really need help in looking as to the reason why isset($_GET['empty_email']) is failing, this has been working on another host some years ago and I just uploaded it to a new host and it is not working.

Code:

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<?php

                                                if(isset($_GET['empty_email'])) {
                                                    ?>Please specify email.<br />
    <?php
                                                }
                                                if(isset($_GET['invalid_email'])) {
                                                    ?>Incorrect email format.<br />
    <?php
                                                }
                                                if(isset($_GET['empty_captcha'])){
                                                    ?>Please specify verification code.<br />
    <?php
                                                }
                                                if(isset($_GET['wrong_code'])){
                                                    ?>Wrong verification code.<br />
    <?php
                                                }
                                                if(isset($_GET['success'])){
                                                    ?>Comment successfully sent.<br />
    <?php
                                                }

                                                ?>

    <form action="send_contact.php" method="post">
      <fieldset style="border: none;">
        <input type="hidden" name="submit" value="submit" />

        <p>Name:<br />
        <input type="text" maxlength="50" name="name" value="" /></p>

        <p>Email:<br />
        <input type="text" maxlength="50" name="email" value="" /></p>

        <p>Type verification image:<br />
        <input name="verif_box" type="text" id="verif_box" /> <img src="verificationimage.php?%3C?php%20echo%20rand(0,9999);?%3E" alt="verification image, type it in the box" width="50" height="24"
        align="bottom" /><br /></p>

        <p>Comments:<br />
        <textarea name="comments" rows="7" cols="7" style="width: 98%;">
</textarea></p>

        <p><input type="submit" name="submit" value="Submit" /></p>
      </fieldset>
    </form>

---

Code:

---

<?php
// Contact subject
$subject ="comment";
// Details
$message="$comments";

// Mail of sender
$mail_from="$email";

$validationOK=true;
if (Trim($mail_from)=="") $validationOK=false;
if (!$validationOK) {
//        header("Location:".$_SERVER['HTTP_REFERER']."?subject=$subject&from=$from&message=$message&empty_email=true");
                header("Location: contact.php?subject={$subject}&from={$from}&message={$message}&empty_email=true");       
                exit;
}

if(eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $mail_from)) {
//  echo "Valid email address.";
}
else {
                header("Location: contact.php?subject={$subject}&from={$from}&message={$message}&invalid_email=true");       
                exit;
}


// captcha
$captcha="$verif_box";

if (Trim($captcha)=="") $validationOK=false;
if (!$validationOK) {
        //header("Location:".$_SERVER['HTTP_REFERER']."?subject=$subject&from=$from&message=$message&empty_captcha=true");
                header("Location: contact.php?subject={$subject}&from={$from}&message={$message}&empty_captcha=true");       
                //print "<meta http-equiv=\"refresh\" content=\"0;URL=contactblankcaptcha.php\">";
  exit;
}

$verif_box = $_REQUEST["verif_box"];
// From
$header="from: $name <$mail_from>";
// Enter your email address
$to ='[email protected]';

if(md5($verif_box).'a4xn' == $_COOKIE['tntcon']){
        $send_contact=mail($to,$subject,$message,$header);
        // delete the cookie so it cannot sent again by refreshing this page
        setcookie('tntcon','');
} else {
        // if verification code was incorrect then return to contact page and show error
        // header("Location:".$_SERVER['HTTP_REFERER']."?subject=$subject&from=$from&message=$message&wrong_code=true");
        header("Location: contact.php?subject={$subject}&from={$from}&message={$message}&wrong_code=true");
        exit;
}

// Check, if message sent to your email
// display message "We've recived your information"
if($send_contact){
  //print "<meta http-equiv=\"refresh\" content=\"0;URL=contactsuccess.php\">";
//  header("Location:".$_SERVER['HTTP_REFERER']."?subject=$subject&from=$from&message=$message&success=true");
                header("Location: contact.php?subject={$subject}&from={$from}&message={$message}&success=true");       
}
else {
echo "ERROR";
}
?>

---

From the looks of it the input values are not being passed to "send_contact.php", why is that? I am testing with echoing and it is always telling me blank for all the input values.

Code:

---

if (Trim("$name")=="")
{ ECHO "blank!!"; }
else
{ ECHO "not blank!!"; }

---

you never define $email.

Doesn't that comes from this "email" input?

Code:

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<input type="text" maxlength="50" name="email" value="" /></p>

---

When you submit a form, the values are accessible in PHP through either the $_POST or the $_GET collection, depending on which one you specified as "method" in your form tag:

Code:

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<form action="send_contact.php" method="post">

---

You're using post, so to access the value of:

Code:

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<input type="text" maxlength="50" name="email" value="" />

---

...you need to look at $_POST["email"]. Same goes for all form inputs.

It sounds like your former host probably had register_globals turned on, which is a huge potential security problem.