Hi, I am making a contact form thingy, and my php isn't working any reason why?

Question

Error:

the code:

<?php 

    $name = $_POST['name'];
    $mail = $_POST['mail'];
    $message = $_POST['message'];

    $to ="bejidev27@gmail.com";
    $subject = "New contact from " .$name;
    $body = "";
    
    $body .= "Name : " .$name. "\r\n";
    $body .= "Email : " .$mail. "\r\n";
    $body .= $message. "\r\n";
    
    if($mail !=NULL){
    mail($to, $subject, $body);
    header("Location: index.html")  ;
    header("Location: done.html")  ;
}

?>

It's not sending the mail nor the page is working i need help ,thanks in advance :D

Answer 1

First, check if your servers are running properly. Then, for the following

$name = $_POST['name'];
$mail = $_POST['mail'];
$message = $_POST['message'];

There need to be values for each you. If you are getting the values from a form, then you have to handle the form first using the 'isset' function, to be able to pass the values to each variables.