PHP Form Guard Tips: Use Guard Code Review Scripts

With the rapid development of the Internet, websites have become an important carrier for business, education, entertainment, social networking, etc. In this context, forms are needed to collect user data information. However, forms have also become an important target for cyber hackers. Common network attack methods include injection attacks, cross-site scripting attacks, HTTP request hijacking, man-in-the-middle attacks, etc. To protect against these security threats, website developers need to secure their forms by using techniques that protect against code review scripts.

1. What is a protective code review script?

Security Code Review Script is a checking tool that marks vulnerabilities in the code and makes suggestions for repairs. Through static code review, developers can improve the security of their code by reducing vulnerabilities before it is submitted to a version control system.

In PHP, there are many tools to implement static code review, such as PMD, Code Climate and PhpStorm, etc. Here we introduce an open source tool called "phpcs", which is developed and maintained by the PHP standards organization and can detect and repair vulnerabilities in PHP code.

2. How to use phpcs for code review?

1. Install phpcs

You can install phpcs through the following code:

composer global require "squizlabs/php_codesniffer=*"

This command will install phpcs in your home directory.

2. Use phpcs to review code vulnerabilities

It is very simple to use phpcs to detect vulnerabilities in PHP code. Just use the following command:

phpcs /path/to/code

/path/to/code refers to the path where the PHP code you need to check is located.

3. Solve problems detected by phpcs

When phpcs detects vulnerabilities, it will give some suggestions on how to fix them. If you agree with the fix suggestion, you can apply it to your code. If you disagree with the fix recommendations, you can choose to ignore them.

The process of using phpcs to detect vulnerabilities in your code and fix them requires certain skills and experience. Therefore, if you are not sure how to fix the error, always seek professional technical support.

3. How to protect against form attacks?

Forms are one of the common attack targets. The key to protecting against form attacks is that developers need to block malicious input data and detect attacks caused by malicious data.

1. Restrict form fields

Developers can add field restrictions to forms to prevent malicious input data. For example, you can add features such as maximum length, number and date validation.

2. Avoid storing user input data directly in the database

Storing user input data in the database can easily expose the application to SQL injection attacks. Developers need to escape the user input data they receive to avoid this security risk.

3. Filter user input data

Filtering user input data helps identify and eliminate malicious data. For example, you can remove the "script" and markup HTML tags in user input.

4. Protect cookies

Hackers can hijack member accounts by stealing browser cookies. Developers can protect against this type of attack by keeping cookies encrypted.

IV. Summary

Nowadays, with the continuous expansion of the Internet and its application fields, security has been paid more and more attention by people. PHP form protection tips - Use protection code review scripts to prevent form attacks and protect website security. Although these technologies require relatively high skills and experience to operate, as the technology develops and user needs continue to change, developers need to continuously upgrade their skill levels to deal with more complex security challenges.

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