Php Regular Expression verification (email address, Url address, phone number, zip code), regular expression url

Php Regular Expression verification (email address, Url address, phone number, zip code), regular expression url

Content to be verified in this example:Email Address, Url address, phone number, zip codeThe verification method is shared with you for your reference. The details are as follows:

1. Email address verification

<? Php/* verify email address */function checkMail ($ email) {// user name, in the format of "\ w", "-", or ". $ email_name = "\ w | (\ w [-. \ w] * \ w) "; // the first section of the domain name. The rule is similar to the user name, excluding the". "$ code_at =" @ "; $ per_domain =" \ w | (\ w [-\ w] * \ w) "; // the middle part of the domain name, up to two segments $ mid_domain = "(\. ". $ per_domain. ") {0, 2}"; // the last segment of the domain name, which can only be ". com ",". org "or". net "$ end_domain = "(\. (com | net | org) "; $ rs = preg_match ("/^ {$ email_name }@{$ per_domain }{$ mid_domain} {$ end_domain} $ /", $ email); return (bool) $ rs;} // test, under Var_dump (checkMail ("root @ localhost"); var_dump (checkMail ("Frank.Roulan@esun.edu.org"); var_dump (checkMail ("Tom.024-1234@x-power_1980.mail-address.com");?>

2. URL address verification

<? Php/* Verify the URL address */function checkDomain ($ domain) {return ereg ("^ (http | ftp) s? : // (Www \.)?. + (Com | net | org) $ ", $ domain) ;}$ rs = checkDomain (" www.taodoor.com "); // returns false $ rs = checkDomain (" http://www.taodoor.com "); // returns true?>

3. Phone number

<? Php/* Verify the phone number */function checkTelno ($ tel) {// remove the extra separator $ tel = ereg_replace ("[\(\)\. -] "," ", $ tel); // only contains numbers. It must be at least a six-digit phone number (that is, no area code) if (ereg ("^ \ d + $", $ tel) {return true ;}else {return false ;}$ rs = checkTelno ("(086) -0411-12345678 "); // returns true?>

4. Postal code verification

<? Php/* Verify zip code */function checkZipcode ($ code) {// remove the extra separator $ code = preg_replace ("/[\. -]/"," ", $ code); // contains a 6-bit zip code if (preg_match ("/^ \ d {6} $ /", $ code) {return true;} else {return false; }}$ rs = checkZipCode ("123456"); // returns true?>

I hope this article will help you learn php programming.

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