如何在邮寄前清理 PHP 中的用户输入? [英] How to sanitze user input in PHP before mailing?

问题描述

我有一个简单的 PHP 邮件程序脚本，它从通过 POST 提交的表单中获取值并将它们邮寄给我:

I have a simple PHP mailer script that takes values from a form submitted via POST and mails them to me:

<?php
$to = "[e-mail]";

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

$body  =  "Person $name submitted a message: $message";
$subject = "A message has been submitted";

$headers = 'From: ' . $email;

mail($to, $subject, $body, $headers);

header("Location: http://example.com/thanks");
?>

如何清理输入?

推荐答案

使用 filter_var().

示例.喜欢:

echo filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);   

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