2fa verification code error

shown in Example 1. The verification code contained in the image is 0123 from left to right. The image is converted to grayscale point by point, that is, the color image is dimmed and de-colored first, and then converted to a black-and-white image for further operations.{After grayscale, the RGB values of pixels are the same, and the brightness ranges from 0 ~ 255 (hxff ). However, for the Identification P

file vendor \ yiisoft \ yii2 \ captcha, including the background color of the verification code, font files and other settings can be found here. 2. configure siteController. public function behaviors() { return [ 'access' => [ 'class' => AccessControl::className(), 'rules' => [ [ 'actions' => ['login', 'error', 'captcha'], 'allow' => true, ], ], ]; } Add the ca

PHP using the GD library to do verification Code, PHPGD Library Verification Code Main points: 1. If Session_Start () is not stated earlier, it is necessary to declare;2, the font can be downloaded in the CMF input fonts to their own definition of the Fonts folder;3. $_session [$sess _name] can be compared by $_post

if (empty ($username)) {$this->error (' Please enter user name ');} if (Empty ($_post[' password ')) {$this->error (' Please enter a password ');} if (Empty ($_post[' Checkcode ')) {$this->error (' Please enter the Captcha ');} if ($_post[' Checkcode ']!=$_session[' verify ') {$this->error ('

Verification code recognition and verification code recognition platform It has been a long time since I wrote my blog last time. In fact, this verification code recognition module was written by myself as a lazy blog. Now I have

PHP generated verification code, thumbnails and Watermark map class sharing, Verification code watermark Encapsulates a class that generates verification codes, thumbnails, and watermarks to share with everyone Articles you may be interested in: PHP Image Captcha

PHP implementation of CAPTCHA Verification code class instance, CAPTCHA verification code This paper describes the PHP implementation of the CAPTCHA verification code class, in the PHP program design has a very wide range of appl

parameter is not supplemented, it may not be responded. '_ viewstategenerator' => 'dc42de27', 'txt _ username' => $ UserName, 'txt _ pwd' => $ password, 'txt _ verifycode' => $ VerifyCode, 'smoney '=> 'ABC', 'login _ Submit. x' => '52 ', 'login _ Submit. y' => '19',); $ getBack = $ this-> _ cookieRequest (' http://xxx.com/noLogin.aspx ', $ LoginData); if (preg_match ('/ (.*?) '; $ ParamsFull = parse_url ($ getBack); parse_str ($ paramsFull ['query'], $ paramsFull ['parsedquery']); if (! Em

= document.getElementById (' Iputcode '). Value; Obtain the verification code that the registered user fills invar yzmtwo = document.getElementById (' Iputcode '). ClassName; Verification code sent by the systemif (Yzm = = "") {Alert ("Verification

ASP. NET -- production of the Verification Code, asp.net Verification Code We often encounter a verification code entry when logging on to the website, posting a blog or submitting a comment. At that time, we finally got in touch

that you clear the sending status of the storage to prevent the user from re-trying the error SmsManager: forgetState (); respondUnprocessable (formatValidationErrors ($ validator ));}} Function Testing Next, configure the route and controller, and test whether the function is normal. Can be opened at the same timehost-domain/laravel-sms/info View the SMS sending and verification status of the