Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo_PHP tutorial

Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo

This article describes how Zend Framework generates verification codes and implements verification code verification functions. method. Share it with everyone for your reference, the details are as follows:

Today I will talk about how to implement the verification code function in the guestbook. This will help our website reduce some spam messages or advertising messages. In this case, I did not use the Zend_Captcha component that comes with Zend Framework.. I just found The verification code class in the ThinkPHP framework is applied to the implementation of the verification code in our guestbook... Here I am writing it in the form of a plug-in... Of course, Zend Framework has many ways Use other codes... I will only use one of them now... So friends who have good methods... can discuss it together... Let's make progress together... Haha...

Step one: Find the library folder in our original tutorial. This is where our Zend class library folder is stored. Now we add several folders in the project to the library folder: library/Custom /Controller/Plugin/

We have added the folder. Now we have to find our verification code file. Here I named it ImgCode.php file name. This file is the class file we will use to generate the verification code. Of course this I rewrote the file into a plug-in form in Zend Framework... Some file descriptions of ImgCode.php are as follows:

<&#63;php
//ImgCode.php部分程序说明
//程序生成的验证码数据
$randval = $this->rand_string($length,$mode);
//把这个数据存贮在Zend_Session中...
//这里有一个Session命名空间的问题,朋友们可以去看一下手册
$authCode = new Zend_Session_Namespace('Auth_Code');
$authCode->imagecode = $randval;
&#63;>

Step 2: In the controller of our guestbook (IndexController.php), add the following action (Action). This action is to generate the verification application.

The program is as follows:

<&#63;php
public function imgcodeAction() {
$this->getFrontController()->setParam('noViewRenderer', true);
//调用我们的验证码类
Zend_Loader::loadClass('Custom_Controller_Plugin_ImgCode');
$imagecode=new Custom_Controller_Plugin_ImgCode();
//返回验证码图片
$imagecode->image2();
}
&#63;>

Step 3: Add the verification code function to our message template: Open the message book display page template, message/index.phtml We add the following html code to the message area. At this time, please look at the source file The JS code inside... functions like changing the verification code image... I won't go into details about these little things... I just added some more JS functions than the last tutorial...

Finally... we find the messageAction function in our controller (IndexController.php). We add the function that requires the verification code. That is to check whether the verification code filled in by the user exists with us. The verification codes in the Session are the same. If they are the same, we will let him leave a message. Otherwise, we will not let him leave a message. I think everyone has this basic idea.

Click here to download the complete example code from this website.

Readers who are interested in more zend-related content can check out the special topics of this site: "Zend FrameWork Framework Introductory Tutorial", "php Excellent Development Framework Summary", "Yii Framework Introduction and Summary of Common Techniques", "ThinkPHP Introductory Tutorial" , "php object-oriented programming introductory tutorial", "php mysql database operation introductory tutorial" and "php common database operation skills summary"

I hope this article will be helpful to everyone’s PHP programming based on the Zend Framework framework.

Articles you may be interested in:

• Zend output produces XML parsing error
• Application analysis based on Zend’s Config mechanism
• Zend Framework Tutorial - Zend_Registry Object usage analysis
• Zend Framework’s method of realizing multi-server sharing of SESSION data
• Zend Framework Smarty extension implementation method
• Zend Framework routing mechanism code analysis
• Zend Framework implements guestbook paging function (with demo source code download)
• Zend Framework implements the method of storing sessions in memcache
• Detailed explanation of usage of Zend Framework paging class
• Zend Framework implements multiple file upload function examples
• Environment configuration for getting started with Zend Framework and the first Hello World example (with demo source code download)
• Summary of knowledge points for getting started with Zend Framework
• Zend Framework tutorial Zend_Config_Xml usage analysis