PHP 有 CGI, FastCGI, Spawn-FCGI 以及 FPM 几种不同的工作方式。目前推荐使用 FPM 工作方式。

安装好 PHP 之后，修改 php-fpm 配置文件。下面是一份基本的配置文件

[global]
error_log = log/php-fpm.log
log_level = notice
emergency_restart_threshold = 1
emergency_restart_interval = 1
daemonize = yes
 
[www]
listen = 127.0.0.1:9000
listen.allowed_clients = 127.0.0.1
listen.owner = www-data
listen.group = www-data
listen.mode = 0666
user = www-data
group = www-data
pm = static
pm.max_children = 8

使用 lighttpd 配合 PHP-FPM 使用基本与使用 Spawn-FCGI 时一致，均调用 fastcgi 模块。下面是一份工作的配置文件。

10-fastcgi.conf

server.modules   += ( "mod_fastcgi" )
 
## Start an FastCGI server for php (needs the php5-cgi package)
fastcgi.server    = ( ".php" => 
  (
   "localhost" =>
    (
      "host" => "127.0.0.1",
      "port" => "9000",
      "allow-x-send-file" => "enable"
    )
#    ("socket" => "/dev/shm/php.socket",
#     "max-procs" => 40,
#     "allow-x-send-file" => "enable"
#    )
#    上面是使用 socket 方式连接 PHP 时使用的
  )
)

nginx 配合 PHP-FPM 与以前配置类似。

fastcgi.conf

fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;
 
fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;
 
fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;
 
fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;
 
# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;

在 site 配置文件中，加入下面的内容即可。

       location ~ \.php {
           fastcgi_split_path_info ^(.+\.php)(/.+)$;
           include fastcgi.conf;
           fastcgi_pass @php;
       }