asp captcha

How do I generate a verification code image? Use php GD? OK, right. In fact, the Zend Captcha module has been encapsulated. This article describes how to use the Zend Captcha module. Environment InstallationFirst, GD must be installed for Zend Captcha. Check whether the GD module is installed in phpinfo. (Note: the module in php-m may contain gd, but the module i

1, installation We install the Captcha expansion pack via Composer: Composer require Mews/captcha Note: Using this expansion pack in Windows also requires the installation of the GD2 extension (php.ini to cancel Php_gd2.dll in the previous comment). 2, configuration You also need to register your service provider in config/app.php before using the CAPTCHA se

As my PHP website has more and more visits to blog development and more comments, Wordpress has more and more visits to blog development and comments as Wordpress does not have the filtering function, wordpress spam comments are getting more and more spam comments because Wordpress messages do not have the filtering function. I have been thinking about how to make Wordpress correct to prevent spam comments from being incorrectly filtered, I have always wanted to use the anti-spam comments plug-i

So far, Chiang has tidied up the Mini-capatcha, Myqaptcha, and the WordPress program itself with the anti-spam comment plug-in function. There is also a similar function we must have encountered, such as in 12306 to buy tickets, the choice of objects of the cheat-proof function is particularly annoying, right? But this approach is more rigorous and can really prevent software reviews. However, the old Chiang to share this fancy captcha plug

CAPTCHA implement verification code to verify the user login, to prevent the password from being violently cracked.The following is run in the SPRINGMVC framework.imported jar Packages:Kaptcha-2.3.2.jar: http://download.csdn.net/detail/u013147600/9052871or in maven---pom.xml: Configure the following configuration of Web. XMLspringmvc.xml Configuration(Captchaproducer is equivalent to a class, and the user modifies its properties according to its own r

Add cage dependency in 1.pom.xml. Dependency> groupId>Com.github.cagegroupId> Artifactid>CageArtifactid> version>1.0version> Dependency> Project related information: https://akiraly.github.io/cage/quickstart.html.2.Controller:@RestController@RestController@RequestMapping ("Captcha")public class Captchacontroller { @Autowired Private Captchaservice Captchaservice; @RequestMapping ("Get") public

Captcha (automatic distinction between computer and human Turing Test-completely Automated public Turing test to tell Computers and humans Apart, abbreviated as Captcha) commonly known as CAPTCHA, is a public automatic program that distinguishes users from computers and people. In the CAPTCHA test, a computer that acts

Example of the CI framework verification code CAPTCHA auxiliary function usage, cicaptcha. Examples of CI framework verification code CAPTCHA auxiliary function usage. This document describes the use of the CI framework verification code CAPTCHA auxiliary function for your reference. The details are as follows: Use the CI framework verification code

Yii built-in Captcha basically can meet most requirements, if you have special requirements for verification code, you can customize the CAPTCHA, which is mainly through the extension of ccaptchaaction to achieve, this example to customize a verification code function, randomly generated within 10 of the addition and subtraction, The user needs to calculate the correct results to pass the validation. This e

1. Error resolution that cannot be refreshed with the page refresh: Modify source Code vendor/yiisoft/yii2/captcha/captchavalidator.php /** * @inheritdoc * * Public functionclientvalidateattribute($object, $attribute, $view) {$captcha=$this->createcaptchaaction ();$code=$captcha->getverifycode (true);$hash=$captcha