email address validation regex

The code is as follows Copy Code Class validation{function Check_email ($value) {//check a email addressreturn (BOOL) Preg_match ('/^[a-z0-9._%+-]+@: [a-z0-9-]+.) +[a-z]{2,4}$/i ', $value);}function Check_ip ($value) {//check A IP addressreturn (BOOL) Preg_match (/^:(? : 25[0-5]|2[0-4][0-9]| [01]? [0-9] [0-9]?). {4}$/", $value.");}function Check_date ($date, $format = "Dd/mm/yy") {//check a

Share a PHP class, used to verify the e-mail address, generally we will be through the JS of the regular to verify that the code is shared here with the native PHP to achieve, the need for friends, you can refer to the next.This article provides the PHP email authentication class, has the following characteristics: 1, can be used as a simple email

Part 1ArticleWe use the string SEARCH method to verify the ASP email address. It may be a friend who prefers regular expressions.Code.Method 1 Copy code The Code is as follows: public function chkmail (byval email) Dim rep, pmail: chkmail = true: Set rep = new Regexp Rep. pattern = "([. a-zA-Z0-9 _-]) {} @ ([a-zA-Z0-9 }(. ([a-zA-Z0-9]) {2,}) {} $" Pmail = rep.

] + arr2[1] + arr2[2]; if (parseint (d1,10) > parseint (d2,10)) return false; Else return true; }// JS Email Address Verification * Check whether the string is email type* Return value:* If NULL, define checksum pass, return True* If the string is email type, check pass, return True* If the

This example describes the regular expression validation IPV4 address feature. Share to everyone for your reference, as follows: The IPV4 address consists of 4 groups of numbers, separated by a., and the range of values for each group of numbers is 0-255. IPV4 must meet the following four rules: 1. Any 1-digit or 2-digit number, or 0-99;2. Any 3-digit number sta

; Table Class = "Gtable" > Tr ID = "Tr_base_0" Style = "" > Th > Email Address: Th > TD > Ij2ee@139.com TD > Tr > Tr ID = "Tr_base_0" Style = "" > Th > Mobile phone: Th > TD > TD > Tr > Tr ID = "Tr_base_0" Style = "" > Th > Birthday: Th > TD > TD > Tr > Tr ID = "Tr_home_2" Style = "Display: none" > Th > Contact

Jquery practice case -- verify email address and jquery case Let's take a look at all the mailboxes: It is obviously impossible for us to make judgments by email address. -A complete Internet email address consists of the foll

keyword. The reading sequence of the regular expression is from left to right. Regular Expressions always start and end with a slash (/). All content between the slashes is part of the regular expression. The Escape Character (^) indicates that we want to use this expression to check strings starting with a specific string. If the escape character is removed, the email address may be considered valid even

Verify email address and Regular Expression /*** Verify that the email address is correct ** @ param email * @ return */public static boolean checkEmail (String email) {boolean flag = false; try {String check = "^ ([a-z0-9A-Z] +

Verify the email address and regular expression. Verify the regular expression. /*** Verify that the email address is correct ** @ param email * @ return */public static boolean checkEmail (String email) {boolean flag = false; tr

This article from: http://blog.csdn.net/javaalpha/article/details/8332587 reprint is please mark, thank you. Read HTML page file parsing Email Address package COM. alpha. test; import Java. io. bufferedreader; import Java. io. file; import Java. io. filenotfoundexception; import Java. io. filereader; import Java. io. filewriter; import Java. io. ioexception; import Java. io. inputstreamreader; import Java.

The main code for verifying the email format is as follows: Public bool isemail (string str_email) { Return System. text. regularexpressions. regEx. ismatch (str_email, @ "^ ([/W-/.] +) @ (/[0-9] {1, 3 }/. [0-9] {1, 3 }/. [0-9] {1, 3 }/.) | ([/W-] + /.) +) ([A-Za-Z] {2, 4} | [0-9] {1, 3}) (/)?] $ "); } The main code for verifying the IP address format is as follo

The regex problem is that the email address and the name after Registrant are intercepted in the following article, but there are many different situations. how can I write a regular expression? Scenario 1: Registrant: nbsp; jinmi nbsp; jinmi8 nbsp; shenzhen, the question of gu regular expression is that the mailbox in the following article and the name of Reg

-\UFDCF\UFDF0-\UFFEF]) * ([a-z]| [\U00A0-\UD7FF\UF900-\UFDCF\UFDF0-\UFFEF]))) $/i.test (email);} The call is simple: Copy the Code code as follows:if (Isemail (' youremail@yourdomain.com ')) {Console.log (' This is e-mail is valid ');} If you are doing server-side validation. Like PHP, the simplest is: Copy the Code code as follows:/** Email

Used to verify that a given email address is legitimate, only for the format of the email address provided, and does not verify that it exists for real./// ///Verify email is legitimate/// /// E -mail to verify Public Static BOOLIsemail (stringemail) {//if NULL, the

The regex problem is that the email address and the name after Registrant are intercepted in the following article, but there are many different situations. how can I write a regular expression? Scenario 1: problems with Registrant: nbsp; jinmi nbsp; jinmi8 nbsp; regular expressions, take the email

[Java]/** Start the program header annotation.* Copyright and version Declaration of the program* Copyright (c) 2011, a student from the computer College of Yantai University* All rights reserved.* File name: get the email address in the specified document* Author: Xue Guangchen* Completion date: January 1, November 17, 2012* Version No.: x1.0* Description of tasks and Solutions* Input description:* Problem

Use a regular expression to verify the email address and mobile phone number Regular Expression, also known as Regular Expression and Regular Expression (English: Regular Expression, often abbreviated as regex, regexp or RE in code), is a concept of computer science. Regular Expressions use a single string to describe and match a series of strings that conform

Use a regular expression to verify the email address and mobile phone number. Regular Expression, also known as Regular Expression and Regular Expression (English: Regular Expression, often abbreviated as regex, regexp or RE in code), is a concept of computer science. Regular Expressions use a single string to describe and match a series of strings that conform

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 regular expression in the email address:\ W + ([-+.] \ w +) * @ \ w + ([-.]