我如何理解电子邮件是否有效？ [英] How Can I Understand That Email Is Valid?

问题描述

我怎么能理解电子邮件是有效的？

我的porpouse是：

当我想在网站上注册管理员如何理解我的电子邮件是有效的？

是否清楚？

解决方案

电子邮件地址非常容易验证;这些规则都非常明确地指定，并且有大量的正则表达用于检查它们： GoogleRegex email PHP [ ^ ]会找到你的负载。



但是......这并不意味着它是真实的 电子邮件地址，或者任何人都会读取发送给它的内容。

检查的唯一方法是发送需要回复的电子邮件，并确保获得回复。这意味着当您发送电子邮件时，电子邮件地址是有效的 - 例如，那里有提供电子邮件ID的网站，例如，持续十分钟！

PHP有一个FILTER_VALIDATE_EMAIL过滤器。

有关详细信息，请访问 http://www.w3schools.com/php/filter_validate_email .asp [ ^ ]。

how can i understand that email is valid?
my porpouse is :
when i want to register in a site how the admin understand that my email is valid?
is clear?

解决方案

Email addresses are pretty easy to validate; the rules are all specified pretty clearly, and there are a large number of regexes for checking them: Google "Regex email PHP"[^] will find you loads.

But...that doesn't mean it's a "real" email address, or that anyone reads what is sent to it if it is.
The only way to check is to send an email which requires a response, and make sure you get it. And that means that the email address was valid when you sent the email, no more - there are web sites out there offering email ID's that last ten minutes, for example!

PHP has a FILTER_VALIDATE_EMAIL filter.
More details are available at http://www.w3schools.com/php/filter_validate_email.asp[^].

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