How to implement PHP multi-threading in Nginx multi-process mode?

In Nginx, multi-process mode is a common configuration, which handles concurrent requests by starting multiple worker processes. However, PHP itself is single-threaded and uses a blocking I/O model to handle requests. However, we can adopt some techniques and strategies to simulate PHP's multi-threaded behavior to improve concurrent processing capabilities.

Two methods of implementing PHP multi-threading will be introduced below: using multiple PHP-FPM processes and using Swoole extensions.

Method 1: Use multiple PHP-FPM processes

In Nginx, a common practice is to use it in conjunction with PHP-FPM (FastCGI Process Manager). PHP-FPM is a standalone process manager that can handle requests from PHP scripts. By configuring multiple PHP-FPM processes, we can simulate PHP's multi-threaded behavior.

First, we need to set up multiple PHP-FPM processes in the Nginx configuration file. For example, you can nginx.confadd the following to the file:

location ~ \.php$ {
    fastcgi_pass   php-fpm1:9000;
    fastcgi_pass   php-fpm2:9000;
    # 添加更多的PHP-FPM进程...
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
    include        fastcgi_params;
}

In the above configuration, we specified a different address and port number for each PHP-FPM process. Nginx will distribute requests to these processes for processing, thereby achieving a multi-threaded effect.

Then, we need to start the corresponding number of PHP-FPM processes. The number of processes can be specified in the configuration file of PHP-FPM. For example, in www.confthe file, you can set pm.max_childrenparameters to control the number of processesÿ

How to implement PHP multi-threading in Nginx multi-process mode?

Guess you like