How to add redirect when form is submitted-CodePudding

I have been trying to add form submit to my web form, so that it submits data to my email using POST. So far this is what I have and it works perfectly:

<?php 
                            if(isset($_POST['submit'])){
                            $user = $_POST['user'];
                            $phone = $_POST['phone'];
                            $email = $_POST['email'];
 $headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";                         
                          
$to = "your-webmail here";
$subject = "Applied Data";
$txt = "Name-'.$user.',<br>Phone -'.$phone.',<br>Email-'.$email.'";
$headers = "From: [email protected]" . "\r\n" .
$headers .= 'Cc: [email protected]' . "\r\n";
$ab=(mail($to,$subject,$txt,$headers));
if($ab)
{
  echo"<script>alert('SignUp successfully.')</script>";
  echo "<script>window.open('index.php','_self')</script>";
}
else
{
   echo"Failed";   
}
}
?>

Is there a way to add a redirect to this code, so it redirects after form is submitted?

CodePudding user response：

You have two options (probably more...)

Refactor your code to use AJAX to process the results of the form;
Don't display the headers until you know whether the form has been submitted / processed correctly. A redirect won't work if headers have already been sent.

As you've provided a non-AJAX problem:

<?php 
if(isset($_POST['submit'])){
  $user = $_POST['user'];
  $phone = $_POST['phone'];
  $email = $_POST['email'];
  $headers = "MIME-Version: 1.0" . "\r\n";
  $headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
  $pageHeaders = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"
\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"; // etc.
                          
  $to = "your-webmail here";
  $subject = "Applied Data";
  $txt = "Name-'.$user.',<br>Phone -'.$phone.',<br>Email-'.$email.'";
  $headers = "From: [email protected]" . "\r\n" .
  $headers .= 'Cc: [email protected]' . "\r\n";
  $ab=(mail($to,$subject,$txt,$headers));
  if($ab)
  {
    header("Location: index.php");
    die();
  }
  else
    echo $pageHeaders; // You will need to create page headers
    echo"Failed";   
  }
}
?>

This solution doesn't allow for an alert or message to indicate successful save. This could be achieved by redirecting to an interstitial page which can redirect after a timer. See here for an example:

CodePudding user response：

use $_SESSION or $_COOKIE or a flag in your DB/in a temporary file to read & write.

for example:

if (isset($_SESSION['mail_sent']) && $_SESSION['mail_sent'] === true) {
    redirect_to($target_url);
    exit;
}

if(isset($_POST['submit'])) {
    ...
    if (sending was successful) {
        $_SESSION['mail_sent'] === true
    }
    else {
        $_SESSION['mail_sent'] === false
    }
}