PHP 内置函数来确定电子邮件是否有效
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PHP built in function to determine if email is valid
提问by Ralph M. Rivera
Possible Duplicate:
How to validate an Email in PHP?
可能重复：
如何在 PHP 中验证电子邮件？
Does PHP have a built in function for determining if an email address is formatted properly. I know it can't go out and check if the email is actually active; I'm talking about just confirming that an email address is structurally correct.
PHP 是否具有用于确定电子邮件地址格式是否正确的内置函数。我知道它不能出去检查电子邮件是否真的有效；我说的是确认电子邮件地址在结构上是正确的。
回答by Decent Dabbler
filter_varcan do this:
filter_var可以这样做：
$result = filter_var( '[email protected]', FILTER_VALIDATE_EMAIL );
It returns falsewhen it failed validation, and returns the e-mail address otherwise.
它false在验证失败时返回，否则返回电子邮件地址。
