How to increase the performance of php on the server?

Question

PHP

There is a php file request handler from the Telegram BOT API.
With multiple requests to the bot, the php handler stops processing any requests.
I solved the problem like this, for each request I open a background process

exec('bash -c "exec nohup setsid php ./script.php > /dev/null 2>&1 &"');

Everything was fine, but still very rarely at rush hour, the php handler starts to fall dead. Only Reboot Apache2 and mysql helps.
I heard that the most miserable values ​​​​of php workers are set in the server settings.
What to do? How to increase the power of php?

Answer 1

try writing in C++ to compile and call it script.cgi and not load the server with unnecessary processes.
let the finished program work and not your script code

Answer 2

Since you are doing tasks in the background, it makes sense to do it idiomatically.
For PHP via Gearman: gearman.org
PS:
PHP provides a huge field for its optimization on an epic scale. Therefore, I will not try to describe even just the directions in this field.