forgot password there was a error message displayed - php

Question

I have put together a forgot password page that should insert a token to my lost password db table and send the user a email with a link to reset the password but I am not getting the email and just get there was a error message on the forgot password page after clicking the submit button and bit unsure what the issue is. My code is below
<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$db = new mysqli("localhost", "username", "password", "databasename");
if(isset($_POST['submit'])){
$email = $_POST['email'];
$stmt = $db->prepare("SELECT * FROM `users` where `customer_email` = ?");
$stmt->bind_param('s', $email);
$stmt->execute();
$res = $stmt->get_result();
if($res->num_rows < 1){
echo "No such email has been found";
} else{
$fetch = $res->fetch_assoc();
$userid = $fetch['user_id'];
$token = bin2hex(openssl_random_pseudo_bytes(45));
$from = "noreply#domain.co.uk";
$url = 'https://www.domain.co.uk/account/passwordreset.php?token='.$token;
if(mail($email, $url, $from)){
//if(mail($to,$subject,$message,$url,$headers)){
$stmt = $db->prepare("INSERT INTO `lost_password`(user_id, token) values(?,?)");
$stmt->bind_param('is', $userid, $token);
$stmt->execute();
$to = $email;
$subject = "New Password Instructions";
$message = " Please visit $url to reset your password";
// Always set content-type when sending HTML email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n";
// More headers
$headers .= 'From: <noreply#domain.co.uk>' . "\r\n";
$mail=mail($to,$subject,$message,$headers);
if($stmt->affected_rows == 1){
echo "We have emailed you instructions on how to reset your password";
} else {
echo "there was an error";
}
}
}
}
?>

Answer 1

If you are working on local server then the error will occure. Have you cheched it on live server? If not please check it on live server.
OR
Instead of using mail() function use PHPMailer