我想制作一个只接受我大学电子邮件地址的用户注册表。
e.g
me@gmail.com, me@yahoo.com, me@live.com = INVALID
me@university.ac.uk = VALID
我应该开始研究哪些类型的术语和查询来实现这一目标?我是PHP的新手,但是从功课开始,我到目前为止只能找到有关如何根据拒绝无效输入来验证电子邮件的教程,而不仅仅是接受有效的域扩展,例如@university.ac.uk
希望这是有道理的,不要试图为我编写代码(虽然视觉解释是有帮助的),只需要一些指示来帮助我们找到正确的方向。
答案 0 :(得分:0)
我建议你使用电子邮件正则表达你的要求。
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rel="icon" type="image/x-icon" />
答案 1 :(得分:0)
如果您首先确定该地址是电子邮件,然后explode()
该电子邮件,则可以检查该服务器是否匹配:
<?php
$email = "foo@university.ac.uk";
$allowed_servers = array("university.ac.uk", "other_server.maybe");
if (filter_var($email, "FILTER_VALIDATE_EMAIL")) {
$check = explode("@", $email);
if (in_array($check[1], $allowed_servers)) {
// server checks out
} else {
// server doesn't check out
}
} else {
// invalid email address
}
答案 2 :(得分:0)