How to redirect a form after submit(form sends email)

[metalforever]

How do you redirect a form after submit(form sends email) ? This is pretty urgent for me. I have included the code in a pastebin.

http://pastebin.org/249014


process_form sends the email. The redirect is easily findable.


Thanks.

<Edit: Added the code here. External references tend to be unreliable. -- Atli>

<?php
//start session
session_start();
 
// prints form
function print_form(){
?>
    <form method="post" action="<?php echo $_SERVER[’PHP_SELF’];?>" id="uploadform" enctype="multipart/form-data">
    <p><label for="namefrom">Name <span class="required">*</span></label>
    <input name="namefrom" id="namefrom" type="text" class="field" value="<?= $_SESSION['myForm']['namefrom']; ?>" tabindex="1"/></p>
 
    <p><label for="emailfrom">Email <span class="required">*</span></label>
    <input name="emailfrom" id="emailfrom" type="text" class="field" value="<?= $_SESSION['myForm']['emailfrom']; ?>" tabindex="2"/></p>
 
 
    <p><label for="address">Address</label>
    <input name="address" id="address" type="text" class="field" value="<?= $_SESSION['myForm']['address']; ?>" tabindex="3"/><br/>
    <input name="address2" id="address2" type="text" class="field" value="<?= $_SESSION['myForm']['address2']; ?>" tabindex="4"/></p>
 
 
    <p><label for="phone">City</label>
    <input name="city" id="city" type="text" class="field" value="<?= $_SESSION['myForm']['city']; ?>" tabindex="5"/></p>
 
    <p><label for="state">State</label>
    <select id="state" name="state" class="field" value="<?= $_SESSION['myForm']['state']; ?>" tabindex="6">
    <option value="none">Please Select State</option><br />
    <option value="AL">Alabama</option><br />
    <option value="AK">Alaska</option><br />
    <option value="AZ">Arizona</option><br />
    <option value="AR">Arkansas</option><br />
    <option value="CA">California</option><br />
    <option value="CO">Colorado</option><br />
    <option value="CT">Connecticut</option><br />
    <option value="DE">Delaware</option><br />
    <option value="DC">Dist of Columbia</option><br />
    <option value="FL">Florida</option><br />
    <option value="GA">Georgia</option><br />
    <option value="HI">Hawaii</option><br />
    <option value="ID">Idaho</option><br />
    <option value="IL">Illinois</option><br />
    <option value="IN">Indiana</option><br />
    <option value="IA">Iowa</option><br />
    <option value="KS">Kansas</option><br />
    <option value="KY">Kentucky</option><br />
    <option value="LA">Louisiana</option><br />
    <option value="ME">Maine</option><br />
    <option value="MD">Maryland</option><br />
    <option value="MA">Massachusetts</option><br />
    <option value="MI">Michigan</option><br />
    <option value="MN">Minnesota</option><br />
    <option value="MS">Mississippi</option><br />
    <option value="MO">Missouri</option><br />
    <option value="MT">Montana</option><br />
    <option value="NE">Nebraska</option><br />
    <option value="NV">Nevada</option><br />
    <option value="NH">New Hampshire</option><br />
    <option value="NJ">New Jersey</option><br />
    <option value="NM">New Mexico</option><br />
    <option value="NY">New York</option><br />
    <option value="NC">North Carolina</option><br />
    <option value="ND">North Dakota</option><br />
    <option value="OH">Ohio</option><br />
    <option value="OK">Oklahoma</option><br />
    <option value="OR">Oregon</option><br />
    <option value="PA">Pennsylvania</option><br />
    <option value="RI">Rhode Island</option><br />
    <option value="SC">South Carolina</option><br />
    <option value="SD">South Dakota</option><br />
    <option value="TN">Tennessee</option><br />
    <option value="TX">Texas</option><br />
    <option value="UT">Utah</option><br />
    <option value="VT">Vermont</option><br />
    <option value="VA">Virginia</option><br />
    <option value="WA">Washington</option><br />
    <option value="WV">West Virginia</option><br />
    <option value="WI">Wisconsin</option><br />
    <option value="WY">Wyoming</option><br />
    </select>
    </p>
 
 
    <p><label for="phone">Zip</label>
    <input name="zip" id="zip" type="text" class="field" value="<?= $_SESSION['myForm']['zip']; ?>" tabindex="7"/></p>
 
 
    <p><label for="phone">Phone</label>
    <input name="phone" id="phone" type="text" class="field" value="<?= $_SESSION['myForm']['phone']; ?>" tabindex="8"/></p>
 
    <p><label for="comments">General Description</label>
    <textarea name="comments" id="comments" rows="7" cols="10" class="field" tabindex="9"><?= $_SESSION['myForm']['comments']; ?></textarea></p>
 
    <span class="copysmhead">Attach your own specs here<br /></span>
    <p class="copy" style="font-weight: normal;">(1 file only, max file size 10mb. Allowed file formats are .doc .pdf .xls .docx .txt .rtf .wpd .wps)<br/>Thank You!</p>
    <input name="attachment" id="attachment" type="file" tabindex="10">
 
    <p><input type="submit" name="submit" id="submit" value="Submit"  tabindex="11"/></p>
    <p><input type="hidden" name="submitted"  value="true" /></p>
    </form>
<?php
}
 
// enquiry form validation
 
function process_form() {
    // Read POST request params into global vars
    // FILL IN YOUR EMAIL
    $to = "[e-mail]";
    $subject = "[ KP ] " . "Quote Request ::" . " " . $_POST['emailfrom'];
    $namefrom = trim($_POST['namefrom']);
    $address = trim($_POST['address']);
    $address2 = trim($_POST['address2']);
    $phone = trim($_POST['phone']);
    $emailfrom = trim($_POST['emailfrom']);
    $comments = trim($_POST['comments']);
    $state = trim($_POST['state']);
    $city = trim($_POST['city']);
    $zip = trim($_POST['zip']);
 
    // Headers
    $headers = 'From: [e-mail]' . "\r\n" .
               'Reply-To:' . " " . $_POST['emailfrom'];
 
 
 
    // Allowed file types. add file extensions WITHOUT the dot.
    $allowtypes=array("doc", "pdf", "xls", "txt", "docx", "rtf", "wpd", "wps");
 
    // Require a file to be attached: false = Do not allow attachments true = allow only 1 file to be attached
    $requirefile="false";
 
    // Maximum file size for attachments in KB NOT Bytes for simplicity. MAKE SURE your php.ini can handel it,
    // post_max_size, upload_max_filesize, file_uploads, max_execution_time!
    // 2048kb = 2MB,       1024kb = 1MB,     512kb = 1/2MB etc..
    $max_file_size="10240";
 
    // Thank you message
    $thanksmessage='Your email has been sent, we will respond shortly.<p>&nbsp;</p>If you have more than one document to attach, submit the first document and start again.';
 
    $errors = array(); //Initialize error array
 
    //checks for a name
    if (empty($_POST['namefrom']) ) {
        $errors[]='You forgot to enter your name';
        }
 
    //checks for an email
    if (empty($_POST['emailfrom']) ) {
        $errors[]='You forgot to enter your email';
        } else {
 
        if (!eregi ('^[[:alnum:]][a-z0-9_\.\-]*@[a-z0-9\.\-]+\.[a-z]{2,4}$', stripslashes(trim($_POST['emailfrom'])))) {
            $errors[]='Please enter a valid email address';
        } // if eregi
    } // if empty email
 
     // checks for required file
    // http://amiworks.co.in/talk/handling-file-uploads-in-php/
    if($requirefile=="true") {
        if($_FILES['attachment']['error']==4) {
            $errors[]='You forgot to attach a file';
        }
    }
 
    //checks attachment file
    // checks that we have a file
    if((!empty($_FILES["attachment"])) && ($_FILES['attachment']['error'] == 0)) {
            // basename -- Returns filename component of path
            $filename = basename($_FILES['attachment']['name']);
            $ext = substr($filename, strrpos($filename, '.') + 1);
            $filesize=$_FILES['attachment']['size'];
            $max_bytes=$max_file_size*1024;
 
            //Check if the file type uploaded is a valid file type. 
            if (!in_array($ext, $allowtypes)) {
                $errors[]="Invalid extension for your file: <strong>".$filename."</strong>";
 
        // check the size of each file
        } elseif($filesize > $max_bytes) {
                $errors[]= "Your file: <strong>".$filename."</strong> is to big. Max file size is ".$max_file_size."kb.";
            }
 
    } // if !empty FILES
 
    if (empty($errors)) { //If everything is OK
 
        echo'<META HTTP-EQUIV="refresh" content="0;URL=thank_you.htm">';
        function process_form();  // processes form.
 
        // send an email
        // Obtain file upload vars
        $fileatt      = $_FILES['attachment']['tmp_name'];
        $fileatt_type = $_FILES['attachment']['type'];
        $fileatt_name = $_FILES['attachment']['name'];
 
 
        // create a boundary string. It must be unique
          $semi_rand = md5(time());
          $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
 
          // Add the headers for a file attachment
          $headers .= "\nMIME-Version: 1.0\n" .
                      "Content-Type: multipart/mixed;\n" .
                      " boundary=\"{$mime_boundary}\"";
 
          // Add a multipart boundary above the plain message
          $message ="This is a multi-part message in MIME format.\n\n";
          $message.="--{$mime_boundary}\n";
          $message.="Content-Type: text/plain; charset=\"iso-8859-1\"\n";
          $message.="Content-Transfer-Encoding: 7bit\n\n";
          $message.="Name: ".$namefrom."\n";
          $message.="Email: ".$emailfrom."\n";
          $message.="Address:\n\t" . $address . "\n\t" . $address2 . "\n\t" . $city . ", " . $state . " " . $zip . "\n";
          $message.="Phone: ".$phone."\n";
          $message.="General Description: ".$comments."\n\n";
          $message.="\n";
          $message.="[ Email Generated from KnepperPress.com ]"; 
          $message.="\n\n\n";
 
        if (is_uploaded_file($fileatt)) {
          // Read the file to be attached ('rb' = read binary)
          $file = fopen($fileatt,'rb');
          $data = fread($file,filesize($fileatt));
          fclose($file);
 
          // Base64 encode the file data
          $data = chunk_split(base64_encode($data));
 
          // Add file attachment to the message
          $message .= "--{$mime_boundary}\n" .
                      "Content-Type: {$fileatt_type};\n" .
                      " name=\"{$fileatt_name}\"\n" .
                      //"Content-Disposition: attachment;\n" .
                      //" filename=\"{$fileatt_name}\"\n" .
                      "Content-Transfer-Encoding: base64\n\n" .
                      $data . "\n\n" .
                      "--{$mime_boundary}--\n";
 
 
 
        }
 
 
 
 
 
        // Send the completed message
 
        $envs = array("HTTP_USER_AGENT", "REMOTE_ADDR", "REMOTE_HOST");
        foreach ($envs as $env)
        $message .= "$env: $_SERVER[$env]\n";
 
        if(!mail($to,$subject,$message,$headers)) {
            exit("Mail could not be sent. Sorry! An error has occurred, please report this to the website administrator.\n");
        } else {
        //     echo '<div id="formfeedback"><h3>Thank You!</h3><p>'. $thanksmessage .'</p></div>';
        //    unset($_SESSION['myForm']);
        //     print_form();
 
 
        } // end of if !mail
 
    } else { //report the errors
        echo '<div id="formfeedback"><h3>Error!</h3><p>The following error(s) has occurred:<br />';
        foreach ($errors as $msg) { //prints each error
                echo " - $msg<br />\n";
            } // end of foreach
        echo '</p><p>Please try again</p></div>';
        print_form();
    } //end of if(empty($errors))
 
} // end of process_form()
?>

[dgourd]

Normally to do this you would have to send a header, but headers must always be sent before anything else to the browser or you will get an error. To fix this, I create an output buffer at the beginning of my script and flush the data at the end. This buffer only sends the data to the browser once you flush the data. This allows any headers to be sent before anything and avoid any errors. So you want to do this first:

// Create the output buffer at the beginning of the script
// I would put this on line 1 before the session since a session is
// also a header and it will pass through the buffer anyways
ob_start():
 
// At the end of the script, then flush the data out and end the buffer
ob_end_flush();
 

Once you create your buffer, then just put in the header whenever you want to do the redirect. It should look like this:

// Send the header using the header function
// Replace example.com with the url you want to redirect to
header("Location: http://www.example.com/");