translate numbers to letters

Php can generate a random string that can contain numbers, letters, or a combination. Php can generate a random string to specify whether it is a pure number, a pure letter, or a mix. You can specify the length. Copy the code as follows: functionrand_zifu ($ what, $ number) {$ string php generates a random string You can specify whether it is a pure number, a pure letter, or a combination. You can specify

// Determine whether the input is public static bool HasChinese (string content) {// determine whether the input is a Chinese string regexstr = @ "[\ u4e00-\ u9fa5]"; if (Regex. isMatch (content, regexstr) {Log ("HasChinese"); return true ;}else {Log ("Has Not Chinese"); return false ;}} // determine whether the number is public static bool isInterger (string str) {if (str = "") {return false;} else {foreach (char c in str) {if (char. isNumber (c) {continue;} else {return false ;}}return true ;}

Php code for batch obtaining the first letter (Chinese characters, numbers, and English letters) $ Mysql_server_name = '192. 0.0.1 '; // change it to your mysql database server. $ Mysql_username = 'user'; // change the username of your mysql database. $ Mysql_password = 'password'; // change the password of your mysql database. $ Mysql_database = 'datab

This article mainly introduces how to generate a random string using php. you can specify pure numbers, pure letters, or a mix of php to generate a random string. You can specify whether it is a pure number, a pure letter, or a combination. You can specify the length. The code is as follows: Function rand_zifu ($ what, $ number ){ $ String = ''; For ($ I = 1; $ I // Hybrid $ Panduan = 1; If (

Get a four-digit random verification code (including numbers and letters)

Import Java.util.scanner;public class Getnumdifchar {public static void main (string[] args) {Scanner scan = new Scanner (Sy stem.in); String str = scan.nextline (), int isletter = 0;int IsSpace = 0;int IsDigit = 0;int Isother = 0;for (int i = 0; i Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Enter a line of characters to count the number of letters, spaces,

Console.Write ("You want to get the number of four-bit random verification code is:"); int a = Int. Parse (Console.ReadLine ()); Console.WriteLine ("Random Verification Code in turn:"); char[] arr = new char[] {' 1 ', ' 2 ', ' 3 ', ' 4 ', ' 5 ', ' 6 ', ' 7 ', ' 8 ', ' 9 ', ' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' g ', ' h ', ' I ', ' j ', ' l ', ' m ', ' n ', ' o ', ' P ', ' Q ', ' R ', ' s ', ' t ', ' u ', ' V ', ' w ', ' x ', ' y ', ' z '};

Rt To verify the username, it contains only numbers, letters, underscores, kanji, and is required to be detected even if the order is scrambled. Reply to discussion (solution) Rule string:/^\w+$/uFor Utf-8 character set, non-utf-8, re-use of utf-8 '/^[\x7f-\xffa-za-z0-9_]+$/' $s = '% '; Var_dump (Preg_match ('/^\w+$/u ', $s)); Int (0) var_dump (preg_match ('/^[\x7f-\xffa-za-z0-9_]+$/', $s)); Int (

Supports php verification code for Chinese letters, numbers, and custom fonts. For more information, see The code is as follows: /** Captcha Class base on php gd Lib* @ Author Design* @ Version 1.0* @ Demo* Include ('captchaclass. php ');* $ CaptchaDemo = new Captcha ();* $ CaptchaDemo-> createImage ();*/Class Captcha {// @ Define the image height of the verification codePrivate $ height;// @ Define th

Method One The code is as follows Copy Code if (Preg_match ("/^d*$/", "4312")){echo "Full digit";}if (Preg_match ("/^[a-z]*$/i", "FDSFDFD")){echo "Full letter";}if (Preg_match ("/^[a-zd]*$/i", "fd4fd34")){echo "has numbers with letters.";} Chinese characters The code is as follows Copy Code $username =$_request[' username '];if (!preg_match

Website Login, user registration and so on need to use the verification code, here to record a simple 6-bit verification code generation method.The class used to generate the verification code:public class Randomnumsupplier{Private Const string Basecode = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";static random rannum = new Random ((int) DateTime.Now.Ticks);public static string Getvcode (int length){StringBuilder builder = new StringBuilder ();for (int i=0;i{int rnnum = Rannum.next (basecode. Length

/*** Auxiliary class * is used to record characters and locations **/class charpos {char C; int Pos; Public charpos (char C, int POS) {This. C = C; this. pos = Pos ;}} /*** Convert the number into uppercase characters **/public class cnnummaker {private string integerpart; // The integer part is private string decimalpart; // Private stack for fractional parts Output: 0-> 0 1-> 1 10-> 1 million-> 1 million-> 1 million 100-> 1 million 1000-> 1 million 10000-> 1 million 100000000 million-> 100000

I used a notebook, which is just happening. The keyboard input in my notebook is out of order, and all the letters are converted into numbers. I thought it was a computer problem at first, and I restarted it three times. After studying for a while, I found that this is not a problem because I accidentally started the laptop keypad. If you do not dare to enjoy the solution exclusively, we will share the sol

[Instance] JAVA generates letters + random numbers and files. instance java Package com. ishow. control. code; import java. io. *; import java. text. simpleDateFormat; import java. util. random;/*** @ author Lee * @ version Creation Time: Oct 9, 2015 4:12:25 PM */public class CreateCodeController {/*** generate a redemption Code * @ return * @ throws IOException */public static void main (String [] args) {L

In this example, characters other than Chinese characters, letters, and numbers are replaced with null. Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> /// /// Replacement character /// /// /// Public Static String Trimcharacter ( String Asstring){ String Sresult = "" ;

Ask God to help write a regular expression that consists of only numbers, letters, Chinese, underscores,/, spaces. Urgent and urgent Thighs to help me this rookie of the busy!! Thank you ------Solution-------------------- /^[\w \\]+$/u Non-utf-8 need to be utf-8 before use ------Solution-------------------- ^[\u4e00-\u9fa5_a-za-z0-9\s\\]+$ ------Solution-------------------- $aa = ' I/1a_ '; Var_du

PHP Regular expressions that allow numbers, letters, and punctuation

Regular validation issues, 6-16-bit letters or numbers

1. Determine if the string is only a numeric:1> with Java-brought function publicstaticbooleanisnumeric (stringstr) {for (Inti=str.length ();--i>=0;) {if (! Character.isdigit (Str.charat (i))) {returnfalse;}} returntrue;}2> Regular Expression publicstaticbooleanisnumeric (STRINGNBSP;STR) {patternpattern=pattern.compile ("[0-9]*"); Returnpattern.matcher (str). Matches ();}3> with ASCII code publicstatic Booleanisnumeric (STRINGNBSP;STR) {for (Inti=str.length ();--i>=0;) { intchr=str.charat (i);

　　/*** Algorithmutil.java * com.tfedu.yuwen.util * Copyright (c) 2017, Beijing Poly-Wisdom Future Technology Co., Ltd. All rights reserved.*/ PackageCom.tfedu.yuwen.util;ImportJava.util.Random;/*** Algorithm Tool class * @authorKuangxiang ([email protected]) * @Date September 18, 2017*/ Public classAlgorithmutil {/*** Number of digits * */ Private Static Final intDIGIT = 8; /*** Verify number of code digits*/ Private Static Final intVerifycodedigit = 6; /*** * Generate ring ID * @returnstr