How to create captcha code

DDoS attacks by malicious hackers.

The reason being that it becomes super-easy for any “robot” to bypass the security since the verification is done on the client-side (and it doesn’t even involve any image processing).

For this article we won’t use any advanced GD functions. But if you want to learn more about GD then you read the various GeeksforGeeks articles about it.

php 

When you can run phpNow only thing we need to do is create a test.php which uses phpFor this example, we’ll keep it simple.

Do not use this script in production code:To tackle this issue we can perhaps add random lines, dots (unit-length circles), etc in the foreground but image processing has developed to the extent that it would only make it a little difficult for the programmer to process the image and stringify it.