How to avoid form submission too fast in PHP language development?

With the rapid development of the Internet industry, website data interaction increasingly relies on form submission. In PHP language development, form submission speed will lead to inaccurate data transmission and even security risks. Therefore, how to avoid form submission too quickly in PHP language development is an issue that developers must pay attention to.

1. What is a form submission that is too fast?

Excessive form submission speed refers to the phenomenon that the client sends form data to the server multiple times in a short period of time. Generally speaking, this phenomenon is caused by malicious attackers using code or software. They will use this method to try to invade the website and conduct illegal activities such as data theft or data tampering.

2. The harm of form submission too fast

Form submission too fast will cause a temporary overload on the server running the PHP program. If multiple clients submit at the same time, it will cause The server crashed. In addition, excessive form submission speed can also be used to simulate user behavior, such as credential stuffing, cracking, blasting, phishing and other hacker attacks. These attacks not only lead to system security risks, but also damage the website's credibility and brand image.

3. How to avoid form submission too fast?

1. Add verification code verification

When submitting the form, adding verification code verification can effectively avoid the problem of too fast form submission speed. Verification codes can distinguish user behavior from automated program behavior, forcing attackers with malicious intentions to stay in the verification process, thereby reducing pressure on the server.

2. Set access control rules

Set access control rules through some technical means (such as IP restrictions, access frequency restrictions, etc.) to limit what a single IP address can do within a certain period of time The number of times the server has been accessed. Under the HTTP protocol, technologies such as Cookie and Session can be used to limit user access frequency. At the same time, software and hardware technologies such as firewalls can be used to intercept malicious requests.

3. Background data processing restrictions

When form submission information is processed in the background, some technical means can be used to limit the speed of data processing, such as tokens, random numbers, Technologies such as timestamps and reflection.

4. Database read-write lock

When multiple users access the database at the same time, data locking is required, and only one can be read or written at a time. Database read-write locks can limit the access time to sensitive data, thereby ensuring data security.

4. Summary

Excessively fast form submission will bring many hidden dangers to website development. Instead, we can effectively avoid this phenomenon through technical means such as verification codes and access control. PHP language developers should be aware of the importance of this issue, not only to ensure code quality, but also to be responsible for the security of user data.

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