I am facing this error. I have created one contacts form in php via which I can receive mails from users. I uploaded it on big rock hosting. But I am getting this error which is in the image I am giving my php code in description.
<?php
$name = $_POST['name'];
$from = $_POST['email'];
$phone = $_POST['phone'];
$email = "abc@gmail.com" ;
$message = $_POST['message'];
$subject = $name+$phone;
mail($email,$subject,$message,"From".$from);
echo "mail sent";
header('Location: index.php');
?>`
