Detailed introduction to the installation and use of PHP-FPM

PHP-FPM is a FastCGI process manager, which is a very important component of PHP and can provide better PHP performance and reliability.

This article will introduce the installation and use of PHP-FPM to help developers quickly master this important component.

1. Install PHP-FPM

1.1 Install PHP

Before installing PHP-FPM, you need to install PHP first. PHP has many different versions and extensions, and you can choose different versions of PHP according to your project needs. In general, you can install PHP through the following command:

sudo apt-get install php

The above command is an example of installing PHP on an Ubuntu system. The specific installation method may vary depending on the operating system.

1.2 Install php-fpm

Installing php-fpm can be achieved through the following command:

sudo apt-get install php-fpm

After installing php-fpm, you need to start it:

sudo service php-fpm start

2. Configure PHP-FPM

Before using PHP-FPM, some configurations are required. Generally, configuration can be done in the following files:

/etc/php/7.2/fpm/php.ini
/etc/php/7.2/fpm/pool.d/www.conf

Among them, the php.ini file is the main configuration file of PHP, in which some basic parameters of PHP can be set; ## The #www.conf file is the configuration file of PHP-FPM, in which you can set some parameters of PHP-FPM, such as the number of processes, the maximum number of connections, etc.

www.conf file:

; Start a new pool named 'www'.
[www]

; The user and group the PHP-FPM process will run as.
user = www-data
group = www-data

; The address on which to accept FastCGI requests.
listen = /run/php/php7.2-fpm.sock

; Set permissions on the socket to allow the web server to access it.
listen.owner = www-data
listen.group = www-data
listen.mode = 0660

; The number of child processes to spawn.
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 5

location / {
    try_files $uri $uri/ /index.php?$args;
}

location ~ \.php$ {
    include fastcgi_params;
    fastcgi_pass unix:/run/php/php7.2-fpm.sock;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}

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