Php email address regular expression verification, email address regular expression _ PHP Tutorial

Php email address regular expression verification and email address regular expression. Regular expression verification for php mail addresses. The most common verification for regular expressions for mail addresses is email address verification. Websites are common. Various web scripts are also commonly used for "php mail address regular expression verification, mail address regular expression

The most common verification is email address verification. Websites are common. Various web scripts also use the regular expression to verify the entered email address and determine whether the email address is valid. Some can also separate the username and domain name. Now we use PHP to implement the email address verification program, which uses the PHP regular expression library.
The source code is as follows:

<? Php header ("Content-Type: text/html; charset = UTF-8"); $ reply = ""; if (isset ($ _ POST ["email_address"]) {$ email_address = $ _ POST ["email_address"]; $ pattern = "/^ ([0-9A-Za-z \-_ \.] +) @ ([0-9a-z] + \\. [a-z] {2, 3 }(\\. [a-z] {2 })?) $/I "; if (preg_match ($ pattern, $ email_address) {$ reply =" the email address you entered is valid.

\ N "; $ user_name = preg_replace ($ pattern," $1 ", $ email_address); $ domain_name = preg_replace ($ pattern," $2 ", $ email_address ); $ reply. = "user name :". $ user_name."
\ N "; $ reply. =" domain name: ". $ domain_name ."
\ N ";} else {$ reply =" the email address you entered is invalid ";}}?>Email address verification procedureEmail Address Verification Program <? Php echo $ reply;?>

The above is the php email address regular expression verification shared for everyone. I hope it will be helpful for everyone's learning.

Token we most often encounter verification, that is, email address verification. Websites are common. Various web scripts are also commonly used "...