Common check functions-PHP source code

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1. [File]Fun. php

 "Opera ",". compatible; MSIE [/] ([0-9.] {1, 10 }). * "=>" ie ",". * Firefox/([0-9. +] {1, 10}) "=>" firefox ",". version/([0-9. +] {1, 10}) "=>" safari ",". chrome/([0-9. +] {1, 10}) "=>" chrome "); $ browser_info = array (); foreach ($ browsers as $ match => $ browser_name) {if (preg_match ('#'. $ match. '# I', $ _ SERVER ["HTTP_USER_AGENT"], $ matches) {$ browser_info [] = $ browser_name; $ browser_info [] = $ matches [1]; $ bro Wser_info [] = $ browser_name. ''. $ matches [1] ;}}return $ browser_info;} // Determine the Ajax method to submit function ajax () {if (isset ($ _ SERVER ['http _ X_REQUESTED_WITH ']) {if ('xmlhttprequest '= strtolower ($ _ SERVER ['http _ X_REQUESTED_WITH']) return true;} return false;} function url ($ v, $ filter = false) {if ($ filter) $ v = filter_var ($ v, FILTER_SANITIZE_URL); if (filter_var ($ v, FILTER_VALIDATE_URL) {return $ v;} else {Return false ;}} function ip ($ v) {if (filter_var ($ v, FILTER_VALIDATE_IP) {return $ v ;}else {return false ;}} function email ($ v, $ filter = false) {if ($ filter) $ v = filter_var ($ v, FILTER_SANITIZE_EMAIL); if (filter_var ($ v, FILTER_VALIDATE_EMAIL )) {return $ v;} else {return false ;}// ID card check function card ($ id_card) {include_once ('card. php '); if (strlen ($ id_card) = 18 & idcard_checksum18 ($ id_card)) {Return $ id_card;} elseif (strlen ($ id_card) = 15) {$ id_card2 = idcard_15to18 ($ id_card); if (idcard_checksum18 ($ id_card2 )) {return $ id_card;} else {return false ;}} else {return false ;}// check the bank card number // Number of digits 16-20function bank_card ($ card) {if (! Preg_match ('# ^ \ d {16, 20 }$ #', $ card) {return false;} $ return = ''; $ arr = include_once ('Bank _ card. php '); foreach ($ arr as $ k => $ v) {if (preg_match ('#'. $ k. '# U', $ card) {$ v = explode ('-', $ v, 3); $ return ['card'] = $ card; $ return ['name'] = $ v [0]; $ return ['type'] = $ v [2]; return $ return ;}} return false ;} // mobile phone number check function shouji ($ phone) {if (preg_match ('# ^ 1 [3458] {1} \ d {9} $ #', $ phone )) {return $ phone;} else {return false ;}// check the character function char ($ char, $ length = '1, 6', $ charlist = '') {if (empty ($ charlist) {$ charlist = 'A-Za-z0-9 _ ';} if (preg_match (' # ^ ['. $ charlist. '] {'. $ length. '} $ #', $ char) {return $ char;} else {return false ;}// check the verification code function yzm ($ yzm) {if (empty ($ _ SESSION ['code']) | empty ($ yzm) {return false ;} if ($ _ SESSION ['code'] = substr (md5 (strtolower ($ yzm), 8, 28) {return true;} else {return false ;}}

2. [File]Card. php

3. [File]Bank_card.rar

Bank_card.rar

4. [File]Check. php