PHP FILTER_SANITIZE_EMAIL过滤器

从电子邮件地址中删除所有非法字符：

 <?php
$email = "john(.doe)@exa//mple.com";

$email = filter_var($email, FILTER_SANITIZE_EMAIL);
echo $email;
?>

定义和用法

FILTER_SANITIZE_EMAIL过滤器从电子邮件地址中删除所有非法字符。