Wrote a PHP random quiz verification Code, security personally think is still good

Source: Internet
Author: User
Wrote a PHP random quiz verification Code, security personally think it is good.

wangking717 wrote

Security features One:

1. The generated content is not the final result, but a question-and-answer system that requires users to respond to the problem, with a more rigorous safety factor than traditional verification codes.

2. The colors, fonts, and positions of each number generated are random, so that it is difficult for others to capture the rules of the program. (The interference line did not get it)

?

If there are any good suggestions, you can leave a message and improve the code together:

   

?

Finish the call. Oh.

1/F 521069108 2011-09-21

Hmm, a little bit of meaning, can only increase the Chinese answer and so on?

2/F 521069108 2011-09-21

Estimate that you want to save the database to do what I said.-0

  • Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.