我对php的编码有问题。我对php/html网页还是个新手。我在youtube上从德里克·阿布切里爵士那里得到了修改和提示：
链接是：https://www.youtube.com/watch?v=m-_bazdyey4
我的问题是如何获得gmail的身份验证。我试图改变，但我现在仍然得到答案，以下是代码：
谢谢您

<?php
header('Content-type: application/json');
$status = array(
    'type'=>'success',
    'message'=>'Email sent!'
);

$name = @trim(stripslashes($_POST['name'])); 
$email = @trim(stripslashes($_POST['email'])); 
$subject = @trim(stripslashes($_POST['subject'])); 
$message = @trim(stripslashes($_POST['message'])); 

$email_from = $email;
$email_to = 'shirokamikaze111@gmail.com';

$body = 'Name: ' . $name . "\n\n" . 'Email: ' . $email . "\n\n" . 'Subject: ' . $subject . "\n\n" . 'Message: ' . $message;

$success = @mail($email_to, $subject, $body, 'From: <'.$email_from.'>');

echo json_encode($status);
die;