regular expression for email validation

Have a friend complete a number of JS and jquery numeric type validation regular expression code, below I give you to tidy up here, including the implementation of digital verification and test examples, we can refer to. JS validation number regular

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 to match the text pattern,

RegularExpressionValidator has two main properties for validation. The controltovalidate contains a value for validation. such as removing the value from the text box. such as controltovalidate= "TextBox1" validationexpression contains a regular expression for validation. We

;. Format ( "{0:0000}" ,i) + "\ n" ; } }NBSP;NBSP; for (int i = 1; i { if ((i% 4 = = 0 i%! = 0) | | I% 400 = = 0) { Richtextbox2.text + = string. Format ("{0:0000}", i) + "\ n"; } } According to the rules of leap year, it is easy to sort out rules, four years a leap;([0-9]{2} (0[48]|[ 2468][048]| [13579] [26])century does not leap, 400 years again leap .(0[48]| [2468] [048]| [13579] [26]) 00Together is the February 29 of all leap years([

General email, form such as zhangshan@163.com,abc@sina.com.cn some commonly used forms on the line, but in our company some customers in the mailbox but there are some zhangshna. Mr@163.com,abc_wang.dd@sian.com,abc_wang.dd.cc@sian.com this similar form, before the @ symbol is a little., the original is to use, but not now, have to study the use of the regular Friends, if there is a

if (Eregi (^[_.0-9a-z-]+@) ([0-9a-z][0-9a-z-]+.) +[a-z]$ ", $email)) { echo "Your e-mail through preliminary check"; } ?> In this sentence, the first is to apply a eregi function, this function is very good understanding. Find a book and give you an explanation: Syntax: int ereg (string pattern, string string, array [regs]); return value: Integer/array This function resolves string strings using pattern rules. The value returned by the result is pla

to decide whether a whole string of strings matches is an assertion. such as ^ $ The code is as follows Copy Code /^ ([w._]{2,10}) @ (W{1,}). ([a-z]{2,4}) $/ Note the head and tail plus ^ $ The code is as follows Copy Code $a = '/^ ([w._]{2,10}) @ (W{1,}). ([a-z]{2,4}) $/';$b = ' 1412424545645454545454545k@qq.com ';if (Preg_match ($a, $b)) {echo "e-mail Legal";}else{echo "e-mail is illegal";} Okay, I'm going to do a

In the development of the registration system, the need to detect the user input email address is legitimate, can use regular expression to detect, below a small example, I hope to help youIn the registration system development, the need to detect the user input email address is legitimate, can be detected in JS or PHP

PHP Mailbox Validation Regular expression The code is as follows Copy Code Preg_match ("/^[0-9a-za-z]+@" ([0-9a-za-z]+) [.]) +[a-z]{2,4}$/i ", $email); Example of a PHP mailbox validation regular