what hyphen in email address

Php implements RFC-compatible email address verification /* Copyright 2009 Dominic Sayers Dominic_sayers@hotmail.com) Http://www.dominicsayers.com) This source file is subject to the Common

From: http://www.cnblogs.com/Dannier/archive/2010/11/06/RegExp.html Email Verification A regular expression (often abbreviated as Regexp) is a mode written with special symbols to describe one or more text strings. The regular expression is used

Example of php regular expression verification email address and email extraction If (ereg ('/^ [a-z] ([a-z0-9] * [-_ \.]? [A-z0-9] +) * @ ([a-z0-9] * [-_]? [A-z0-9] +) + [\.] [a-z] {2, 3} ([\.] [a-z] {2 })? $/I; ", $

the most common verification is email address verification. Websites are common. Various web scripts also use regular expressions ( Regular Expression ) verify the email address we entered to determine whether the email address is valid. Some can

The most common verification is email address verification. Websites are common. Various web scripts also use regular expressions "(Regular Expression) Verify the email address we entered to determine whether the email address is valid. Some can

Regular expression verification email address and phone number Verify the regular expression of the phone number:(\ D {3}-) (\ d {8}) $ | (\ d {4}-) (\ d {7 }) $ | (\ d {4}-) (\ d {8}) $(The new phone number is used here)Verify the

Php mail address regular expression implementation and detailed description. This article not only describes the regular expression but also describes the composition and usage of mailbox regular expressions. For more information, see, at the same

This article not only describes the regular expression but also describes the composition and usage of mailbox regular expressions. For more information, see, at the same time, we also provide a variety of mailbox verification instances This article

First, attach the codeCopy codeThe Code is as follows:^ [_. 0-9a-z-] + @ ([0-9a-z] [0-9a-z-] +.) + [a-z] {2, 3} $ In this regular expression, "+" indicates that one or more strings appear consecutively. "^" indicates that the next string must start,

This article not only describes the regular expression but also describes the composition and usage of mailbox regular expressions. For more information, see, at the same time, we also provide a variety of different email verification instances with