PHP-FPM with EasyHAProxy FastCGI Plugin

FastCGI Environment

PHP Version
Server Software
Document Root
Script Filename
Request URI
Request Method
Server Name
Server Port
HTTPS
PATH_INFO
Gateway Interface

Test Links

• View PHP Info
• Test PATH_INFO support

How This Works

This setup uses HAProxy with EasyHAProxy to proxy requests to PHP-FPM via the FastCGI protocol:

1. HAProxy receives HTTP request on port 80
2. The FastCGI plugin generates an fcgi-app configuration that defines CGI parameters (SCRIPT_FILENAME, DOCUMENT_ROOT, etc.)
3. HAProxy uses this configuration to communicate with PHP-FPM via the FastCGI protocol
4. HAProxy connects to PHP-FPM (via TCP port 9000 or Unix socket, depending on configuration)
5. PHP-FPM processes the PHP script and returns the response
6. HAProxy sends the response back to the client

Configuration

The FastCGI plugin is configured in docker-compose-php-fpm.yml:

• document_root: /var/www/html
• index_file: index.php
• path_info: true (enables PATH_INFO support)