captcha box

ProblemIn a less fortunate situation, people use automated programs to submit forms, causing a lot of rubbish throughout the internet. One way to prevent this is to use a CAPTCHA---CAPTCHA: fully automated to differentiate between computer and human

Yii uses the Captcha verification code, yiicaptcha verification code. Yii uses the Captcha verification code. This document describes how Yii uses the Captcha verification code. For your reference, refer to the following code: for details, refer to

This article mainly introduces how Yii uses Captcha verification code, and analyzes the three-layer MVC implementation skills of Yii using Captcha verification code in combination with examples, for more information about how Yii uses Captcha

In this paper, the method of using CAPTCHA verification code for Yii is described. Share to everyone for your reference, as follows: The detailed code can refer to: the example code of YII comes with The Post project, which has a contact form with

This article mainly introduces how Yii uses Captcha verification code, and analyzes the three-layer MVC implementation skills of Yii using Captcha verification code in combination with examples, for more information about how Yii uses Captcha

This article introduces a very good code generation PHP program, first when the user requests HTTP, the server side creates a unique SessionID, this is the session ID, and then to start the GD library or ImageMagick these drawing tools, The random

In this paper, the method of using CAPTCHA verification code for Yii is described. Share to everyone for your reference, as follows: The detailed code can refer to: the example code of YII comes with The Post project, which has a contact form with

• Create a new PHP file captcha_code_file.php The code is as follows Copy Code Open Session FirstSession_Start ();Define foreground display verification code length & width$image _width = 120;$image _height =

This article illustrates the method used by Yii to use CAPTCHA authentication codes. Share to everyone for your reference, specific as follows: Detailed code can refer to: Yii from the sample Code post project, which has a contact table alone to

Topics Many automatedProgramThe form is automatically submitted, causing a large amount of junk data on the Internet. To prevent this situation, we have implemented a graphic Verification Code (CAPTCHA:Completely automated public Turing test to