email 简单的php正则校验email地址的函数

[php]代码库

<?php
    /* If you won't use filter_var() you should use this instead */
    function isEmail($email)
    {
        if(preg_match("/^[_\.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z-]+\.)+[a-zA-Z]{2,6}$/i", $email))
        {
            return true;
        }
        else
        {
            return false;
        }
    }
?>