How to limit the number of POST requests per IP using PHP or Apache?

Question

PHP

There is a ready-made webhook that accepts POST requests from the specified IP addresses, when a request is received, the data is checked, after which they are entered into MySQL. IP addresses are entered by hand, but nevertheless, to fully automate the process, I would like to add a restriction. It is necessary to limit the number of requests to 1 in 10 minutes using PHP or Apache . Tell me how can I implement this?

Answer 1

If you do not touch the database - you can use lock files!
The algorithm is approximately the following:
When a request is received, we try to open the file , i.e. the name is the client's IP ("89.108.13.56.lock", "127.0.0.1.lock", etc.) Then we read the Unix timestamp from this file, if 10 minutes have not passed - die(). If 10 minutes or more have passed, then we throw the current Unix timestamp into the file and work on! With a database, of course, it would be more correct, but since such a case, then you can use my method. $_SERVER['REMOTE_ADDR'] . ".lock"

Answer 2

bd keep track of the time of the last POST. A new POST arrives, we request the time of the last POST from the database, compare it with the current one, if the time is less than 10 minutes, then the POST helmet is forested, otherwise we process