PHP code for form data verification

This article describes how to implement form data verification in PHP Code. For more information, see

This article describes how to implement form data verification in PHP Code. For more information, see

The following PHP code is used to implement the form data verification class. The details are as follows:

Easy to use and convenient form data verification

<? Php // verification class Fun {function isEmpty ($ val) {if (! Is_string ($ val) return false; // if (empty ($ val) return false; // if ($ val = '') is set '') return false; // whether it is null return true;}/* ----------------------------------------------------------- function name: isNumber Brief Description: Check whether the input is a number input: string output: boolean modify log: ------ else */function isNumber ($ val) {if (ereg ("^ [0-9] + $", $ val) return true; return false ;}/*---------- --------------------------------------------- Function name: isPhone Brief Description: Check whether the input is phone input: string output: boolean modify log: ------ handler */function isPhone ($ val) {/eg: xxx-xxxxxxxx-xxx | xxxx-xxxxxxx-xxx... if (ereg ("^ (0 \ d {2, 3})-) (\ d {7, 8}) (-(\ d {3 ,}))? $ ", $ Val) return true; return false;}/* ----------------------------------------------------------- function name: isPostcode Brief Description: Check whether the input is a zip code input: string output: boolean modification log: ------ --------------------------------------------------------- */function isPostcode ($ val) {if (ereg ("^ [0-9] {} $", $ val) return true; return false ;} /* ------------------------------------------------------------- function name: Brief description of isEmail: Enter the email address validity check: str Ing output: boolean modify log: ------ ----------------------------------------------------------- */function isEmail ($ val, $ domain = ") {if (! $ Domain) {if (preg_match ("/^ [a-z0-9-_.] + @ [\ da-z] [\. \ w-] + \. [a-z] {2, 4} $/I ", $ val) {return true;} elsereturn false ;} else {if (preg_match ("/^ [a-z0-9-_.] + @". $ domain. "$/I", $ val) {return true;} elsereturn false;} // end func/* alias function name: isName Brief Description: Check the name nickname validity, only Chinese and English input can be entered: string output: boolean modify log :------------------------------------------------------------- ---- */Function isName ($ val) {if (preg_match ("/^ [\ x80-\ xffa-zA-Z0-9] {} $/", $ val )) // {return true;} return false;} // end func/* ------------------------------------------------------------- function name: isStrLength ($ theelement, $ min, $ max) Brief description: check whether the string length meets the requirements input: mixed (string, minimum length, maximum length) Output: boolean modify log: ------ ------------------------------------------------- */function isStrLength ($ val, $ min, $ Max) {$ theelement = trim ($ val); if (ereg ("^ [a-zA-Z0-9] {". $ min. ",". $ max. "} $", $ val) return true; return false;}/* ------------------------------------------------------------- function name: isNumberLength ($ theelement, $ min, $ max) Brief description: check whether the string length meets the requirements input: mixed (string, minimum length, maximum length) Output: boolean modify log: ------ --------------------------------------------------- */function isNumLength ($ val, $ min, $ max) {$ theelement = trim ($ v Al); if (ereg ("^ [0-9] {". $ min. ",". $ max. "} $", $ val) return true; return false;}/* ------------------------------------------------------------- function name: isNumberLength ($ theelement, $ min, $ max) Brief description: check whether the string length meets the requirements input: mixed (string, minimum length, maximum length) Output: boolean modify log: ------ running */function isength ($ val, $ min, $ max) {$ theelement = trim ($ val); if (ereg ("^ [a-zA-Z] {". $ min. ", ". $ Max. "} $", $ val) return true; return false;}/* ----------------------------------------------------------- function name: isEnglish Brief Description: Check whether the input is an English input: string output: boolean Author: ------ modify log: ------ ----------------------------------------------------------- */function isEnglish ($ theelement) {if (ereg ("[\ x80-\ xff]. ", $ theelement) {Return false;} Return true ;}/*----------------------------------------------------------- Function Name: isChinese Brief Description: Check whether the input is a Chinese character input: string output: boolean modify log: ------ --------------------------------------------------- * // * function isChinese ($ sInBuf) // problematic function {$ iLen = strlen ($ sInBuf); for ($ I = 0; $ I <$ iLen; $ I ++) {if (ord ($ sInBuf {$ I})> = 0x80) {if (ord ($ sInBuf {$ I})> = 0x81 & ord ($ sInBuf {$ I}) <= 0xFE) & (ord ($ sInBuf {$ I + 1})> = 0x40 & ord ($ sInBuf {$ I + 1}) <0x7E) | (ord ($ sInBuf {$ I + 1})> 0x7E & ord ($ sIn Buf {$ I + 1}) <= 0xFE) {if (ord ($ sInBuf {$ I})> 0xA0 & ord ($ sInBuf {$ I }) <0xAA) {// return false;} else {// return false;} $ I ++;} else {return false ;}} return true;} */function isChinese ($ sInBuf) // The correct function {if (preg_match ("/^ [\ x7f-\ xff] + $ /", $ sInBuf) {// compatible with gb2312, utf-8return true;} else {return false ;}/ * empty function name: isDomain ($ Domain) Brief Description: Check one (English) enter a valid Domain Name: String Domain name output: boolean modification log: --------------------------------------------------------------- */function isDomain ($ Domain) {if (! Eregi ("^ [0-9a-z] + [0-9a-z \.-] + [0-9a-z] + $", $ Domain) {Return false;} if (! Eregi ("\. ", $ Domain) {Return false;} if (eregi ("\-\. ", $ Domain) or eregi (" \-", $ Domain) or eregi ("\. \. ", $ Domain) or eregi ("\. \-", $ Domain) {Return false;} $ aDomain = explode (". ", $ Domain); if (! Eregi ("[a-zA-Z]", $ aDomain [count ($ aDomain)-1]) {Return false ;} if (strlen ($ aDomain [0])> 63 | strlen ($ aDomain [0]) <1) {Return false;} Return true ;} /*** date verification function * @ param unknown_type $ date * @ param unknown_type $ format * @ throws Exception * @ return boolean */function validateDate ($ date, $ format = 'yyyy-MM-DD ') {switch ($ format) {case 'yyyy/MM/dd': case 'yyyy-MM-DD': list ($ y, $ m, $ d) = preg_split ('/[-. /]/ ', $ Date); break; case 'yyyy/DD/mm': case 'yyyy-DD-MM': list ($ y, $ d, $ m) = preg_split ('/[-. /]/', $ date); break; case 'dd-MM-YYYY': case 'dd/MM/YYYY ': list ($ d, $ m, $ y) = preg_split ('/[-. /]/', $ date); break; case 'Mm-DD-YYYY': case 'Mm/DD/YYYY ': list ($ m, $ d, $ y) = preg_split ('/[-. /]/', $ date); break; case 'yyyymmdd': $ y = substr ($ date, 0, 4); $ m = substr ($ date, 4, 2); $ d = substr ($ date, 6, 2); B Reak; case 'yyyyddmm': $ y = substr ($ date, 0, 4); $ d = substr ($ date, 4, 2 ); $ m = substr ($ date, 6, 2); break; default: throw new Exception ("Invalid Date Format");} return checkdate ($ m, $ d, $ y);}/* callback function name: isDate Brief Description: Check whether the date complies with objective-00-00 input: string output: boolean modify log: required */function isDate ($ sDa Te) {if (ereg ("^ [0-9] {4} \-[] [0-9] {2} \-[0-9] {2} $ ", $ sDate) {Return true;} else {Return false;}/* --------------------------------------------------------- function name: isTime Brief Description: Check whether the date meets 0000-00-00 00:00:00 input: string output: boolean modification log: ----------------------------------------------------------------- */function isTime ($ sTime) {if (ereg ("^ [0-9] {4} \-[] [0-9] {2} \-[0-9] {2} [0-9- 9] {2 }: [0-9] {2}: [0-9] {2} $ ", $ sTime) {Return tr Ue;} else {Return false;}/* --------------------------------------------------------- function name: isMoney ($ val) Brief Description: Check whether the input value is in valid RMB format input: string output: boolean modify log: logs */function isMoney ($ val) {if (ereg ("^ [0-9] {1 ,}$", $ val) return true; if (ereg ("^ [0-9] {1 ,}\. [0-9] {1, 2} $ ", $ val) return true; return false ;}/*--------------------------------------------------- -------- Function name: isIp ($ val) Brief Description: Check whether the input IP meets the requirements input: string output: boolean modify log: ----------------------------------------------------------- */function isIp ($ val) {return (bool) ip2long ($ val);} // verify/*** verify mobile phone number * @ param int $ mobile */function valid_mobile ($ mobile) {if (strlen ($ mobile )! = 11) return false; if (preg_match ('/13 [0-9] \ d {8} | 15 [0 | 1 | 2 | 3 | 5 | 6 | 7 | 8 | 9] \ d {8} | 18 [0 | 5 | 6 | 7 | 8 | 9] \ d {8 }/', $ mobile) {return true;} else {return false;}/*** thumbnail generation function, it is best to use GD2 ** @ param string $ srcFile to generate a thumbnail file * @ param int $ toW thumbnail width * @ param int $ toH thumbnail height * @ param string $ toFile thumbnail file * /function ImageResize ($ srcFile, $ toW, $ toH, $ toFile = "") {if ($ toFile = "") {$ toFile = $ srcFile;} $ info = ""; $ data = GetImageSize ($ srcFil E, $ info); switch ($ data [2]) {case 1: if (! Function_exists ("imagecreatefromgif") {// echo "your GD library cannot use images in GIF format. use Jpeg or PNG format! Return "; return false ;}$ im = ImageCreateFromGIF ($ srcFile); break; case 2: if (! Function_exists ("imagecreatefromjpeg") {// echo "your GD library cannot use jpeg images. Please use images in other formats! Return "; return false ;}$ im = ImageCreateFromJpeg ($ srcFile); break; case 3: $ im = ImageCreateFromPNG ($ srcFile); break ;} $ srcW = ImageSX ($ im); $ srcH = ImageSY ($ im); $ toWH = $ toW/$ toH; $ srcWH = $ srcW/$ srcH; if ($ toWH <= $ srcWH) {$ ftoW = $ toW; $ ftoH = $ ftoW * ($ srcH/$ srcW);} else {$ ftoH = $ toH; $ ftoW = $ ftoH * ($ srcW/$ srcH);} if ($ srcW> $ toW | $ srcH> $ toH) {if (function_exists ("imagecreatetruecolor ")) {@ $ ni = ImageCreateTrueColor ($ ftoW, $ ftoH); if ($ ni) ImageCopyResampled ($ ni, $ im, 0, 0, 0, 0, $ ftoW, $ ftoH, $ srcW, $ srcH); else {$ ni = ImageCreate ($ ftoW, $ ftoH); ImageCopyResized ($ ni, $ im, 0, 0, 0, $ ftoW, $ ftoH, $ srcW, $ srcH) ;}} else {$ ni = ImageCreate ($ ftoW, $ ftoH); ImageCopyResized ($ ni, $ im, 0, 0, 0, 0, $ ftoW, $ ftoH, $ srcW, $ srcH);} if (function_exists ('imagejpeg ') imagejpeg ($ ni, $ toFile); else ImagePNG ($ ni, $ toFile ); imageDestroy ($ ni);} else {ImageDestroy ($ im); return false;} ImageDestroy ($ im); return true ;} // remove the string space static function strTrim ($ str) {return preg_replace ("/\ s/", "", $ str );} // verify the userName static function userName ($ str, $ type, $ len) {$ str = self: strTrim ($ str); if ($ len = $ Min & strlen ($ str) <= $ max) {return true;} else {return false ;}// verify Emailstatic function Email ($ str) {$ str = self: strTrim ($ str); if (preg_match ("/^ ([a-z0-9 _] |\\-| \\.) + @ ([a-z0-9 _] | \-) + \\.) {1, 2} [a-z] {2, 4} $/I ", $ str) {return true;} else {return false ;}// verify your ID card (China) static function idCard ($ str) {$ str = self: strTrim ($ str ); if (preg_match ("/^ ([0-9] {15} | [0-9] {17} [0-9a-z]) $/I", $ str )) {return true;} else {return false ;}// verify the landline Phone static function Phone ($ type, $ str) {$ str = self: strTrim ($ str ); switch ($ type) {case "CHN": if (preg_match ("/^ ([0-9] {3} | 0 [0-9] {3 }) -[0-9] {7,8} $/", $ str) {return true;} else {return false;} break; case" INT ": if (preg_match ("/^ [0-9] {4}-([0-9] {3} | 0 [0-9] {3 }) -[0-9] {} $/", $ str) {return true;} else {return false;} break ;}} /*** filter the values of two-dimensional arrays * @ param two-dimensional array $ arr_data * @ param one-dimensional array $ field * @ return Ambigous */Function getarrayfield ($ arr_data, $ field) {$ resultArr = array (); foreach ($ arr_data as $ key => $ value) {foreach ($ field as $ k =>$ v) {if (array_key_exists ($ v, $ value )) // Add {$ resultArr [$ key] [$ v] = $ value [$ v];} else {$ resultArr [$ key] [$ v] = "This column does not exist" ;}} return $ resultArr ;} /*** obtain the Client ip Address * @ return ip */function get_client_ip () {if (getenv ("HTTP_CLIENT_IP") & strcasecmp (getenv ("HTTP_CLIENT_IP "), "unknown") $ ip = Getenv ("HTTP_CLIENT_IP"); else if (getenv ("HTTP_X_FORWARDED_FOR") & strcasecmp (getenv ("HTTP_X_FORWARDED_FOR"), "unknown ")) $ ip = getenv ("HTTP_X_FORWARDED_FOR"); else if (getenv ("REMOTE_ADDR") & strcasecmp (getenv ("REMOTE_ADDR"), "unknown ")) $ ip = getenv ("REMOTE_ADDR"); else if (isset ($ _ SERVER ['remote _ ADDR ']) & $ _ SERVER ['remote _ ADDR '] & strcasecmp ($ _ SERVER ['remote _ ADDR'], "unknown") $ ip = $ _ SERVER ['Remote _ ADDR ']; else $ ip = "unknown"; return ($ ip);} function get_http_user_agent () {return isset ($ _ SERVER ['HTTP _ USER_AGENT '])? $ _ SERVER ['HTTP _ USER_AGENT ']: "";}/*** obtain the real address from the IP address * @ param ip $ ip */function get_address_from_ip ($ IP) {$ url =' http://www.youdao.com/smartresult-xml/search.s?type=ip&q= '; $ Xml = file_get_contents ($ url. $ ip); $ data = simplexml_load_string ($ xml); return $ data-> product-> location;}/*** generates a random string, it can be used to automatically generate a password. 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Str_repeat ($ chars, $ len): str_repeat ($ chars, 5);} if ($ type = 4) {// process Chinese $ chars = preg_replace ('/[^ \ x {4e00}-\ x {9fa5}]/U', '', $ chars ); //// cancel the non-utf8 Chinese Character $ chars = chunk_split ($ chars, 3, ","); /// insert a ",", convert to an array. Use strlen () to test that a Chinese character occupies 3 $ re = explode (",", $ chars); shuffle ($ re ); // random re-order array $ chars = implode ($ re); unset ($ re); $ str = mb_substr ($ chars, 0, $ len, "UTF-8 ");} else {$ chars = str_shuffle ($ chars); $ str = Substr ($ chars, 0, $ len) ;}return $ str ;}// obtain the value of the parameter in the url function geturlval ($ url, $ name) {$ arr = parse_url ($ url); $ arr_query = $ this-> convertUrlQuery ($ arr ['query']); return $ arr_query [$ name];} function convertUrlQuery ($ query) {$ queryParts = explode ('&', $ query); $ params = array (); foreach ($ queryParts as $ param) {$ item = explode ('=', $ param); $ params [$ item [0] = $ item [1];} return $ params ;} /***** capture remote images ** @ param stri Ng $ url remote image path * @ param string $ filename local storage file name */function grabImage ($ url, $ savepath) {if ($ url = "") {return false; // If $ url is null, false is returned.} $ ext_name = strrchr ($ url ,'. '); // obtain the image extension if ($ ext_name! = '.Gif '& $ ext_name! = '.Jpg '& $ ext_name! = '.Bmp '& $ ext_name! = '.Png ') {return false; // The format is not in the permitted range} // obtain the source image name $ filename = $ savepath.' \ '. end (explode (' http://www.jb51.net/ ', $ Url); // start to capture ob_start (); readfile ($ url); $ img_data = ob_get_contents (); ob_end_clean (); $ size = strlen ($ img_data); $ local_file = fopen ($ filename, 'A'); echo $ filename; if (fwrite ($ local_file, $ img_data) = FALSE) {echo 'image download failed';} fclose ($ local_file); return $ filename ;}}?>

The above Code uses php code to implement all the content of the form data verification class. I hope you will like it.