Php/filter validate email
来自菜鸟教程
PHP FILTER_VALIDATE_EMAIL过滤器
例
检查变量$ email是否为有效的电子邮件地址:
<?php $email = "john.doe@example.com"; if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo("$email is a valid email address"); } else { echo("$email is not a valid email address"); } ?>
定义和用法
FILTER_VALIDATE_EMAIL过滤器验证电子邮件地址。
更多例子
下面的示例既净化又验证了电子邮件地址:
例1
首先从$ email变量中删除所有非法字符,然后检查它是否为有效的电子邮件地址:
<?php $email = "john.doe@example.com"; // Remove all illegal characters from email $email = filter_var($email, FILTER_SANITIZE_EMAIL); // Validate e-mail if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo("$email is a valid email address"); } else { echo("$email is not a valid email address"); } ?>