captcha security help

The content of this tutorial is close to the technical direction I am good at: Safe contact forms. As I mentioned in the previous tutorial, A common contact form helps a visitor communicate with you without exposing your email address to the

Course Overview:The paper came to the end of the light, I know this matter to preach. Through the course of learning and practical exercises, let the students understand and grasp the common web security vulnerabilities mining, use skills, and know

50 jquery plugins for form functionality, validation, security and customisation To be honest, entering a form is always a pain point. What about developers? You can create a form to say they are more painful. No one will really like them. For

A simple and secure PHP code class with Call method, PHP verification code attached to the call Example of a verification code Second, PHP Verification code class, secoder.class.php * @link Http://labs.yulans.cn/YL_Security_Secoder * @link

Web Security Foundation-based questions answered1.SQL injection attack principle, how to defend?The SQL injection attack refers to the introduction of a special input as a parameter to the Web application, which is mostly a combination of SQL syntax,

This example describes the Yii core Validator API. Share to everyone for your reference, specific as follows: Core Validator Cores validators Objective YII provides a series of Common Core validators that you canFound in Yii\validators namespace.

Registration function is a lot of Web site must do features, there is a registration function will have SMS verification code, this article to share the thinkphp implementation of SMS Verification registration function, interested friends to see

Preface Registration often need to use SMS Verification code, this article records the idea and concrete implementation. SMS verification platform using cloud tablets, SMS verification code generation using thinkphp. Ideas 1, the user input mobile

Simple and secure PHP verification code with call method, PHP verification code attached to the call Example of a verification code Second, PHP Verification code class, secoder.class.php * @link Http://labs.yulans.cn/YL_Security_Secoder *

In Web development and design, everything is not a good thing. We are often warned not to reinvent the wheel "child" (don't reinvent the wheel ), large-scale and comprehensive development is not only a huge burden, but also brings more security