Nginx支持PHP的CI框架

1.找到CI庫的配置文件修改

$config['base_url']    = 'http://test.example.com';
$config['uri_protocol'] = 'PATH_INFO';
2.找到NGINX配置.在SERVER段中添加以下代碼段

location /index.php{
                              fastcgi_pass  unix:/tmp/php-cgi.sock;
                              fastcgi_param SCRIPT_FILENAME /home/wwwroot/index.php;
                              fastcgi_param PATH_INFO $fastcgi_path_info;
                              fastcgi_split_path_info ^(.+\.php)(.*)$;
                              fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
                              include fcgi.conf;
            }
3.若是要作跳轉的話，(好比：http://test.example.com/index.php/test,跳轉
http://test.example.com/test.)能夠server 段中添加以下配置
location /{
                  if (-f $request_filename) {
                              expires max;
                              break;
                      }
                      if (!-e $request_filename) {
                              rewrite ^/(.*)$ /index.php/$1 last;
                      }
  }

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前一段時間爲了 PATH_INFO 問題搞得鬱悶，來回憶下原來的配置（以CodeIgniter框架的配置爲例）：

server {
	listen       80;
	server_name  test.local;

	location / {
		root   /www/test;
		index  index.html index.htm index.php;
		rewrite ^/$ /index.php last;
		rewrite ^/(?!index\.php|robots\.txt|images|js|styles)(.*)$ /index.php/$1 last;
	}

	location ~ \.php($|/) {
		root	   /www/test;

		set $script     $uri;
		set $path_info  "";

		if ($uri ~ "^(.+?\.php)(/.*)$") {
		    set $script     $1;
		    set $path_info  $2;
		}

		fastcgi_index	index.php;
		fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
		fastcgi_param   PATH_INFO       $path_info;
		fastcgi_pass    unix:/tmp/php-fpm.sock;
		include	fastcgi_params;
    	}
}

雖然能夠實現 PATH_INFO 了，可是仍是有缺陷，URL 中的中文不會被 urldecode。

好在，0.7.31 版本以上的 Nginx 新增了fastcgi_split_path_info 這個指令，如今配置起來清晰多了：

server {
	listen       80;
	server_name  test.local;

	location / {
		root   /www/test;
		index  index.html index.htm index.php;
		rewrite ^/$ /index.php last;
		rewrite ^/(?!index\.php|robots\.txt|images|js|styles)(.*)$ /index.php/$1 last;
	}

	location ~ ^(.+\.php)(.*)$ {
		root	   /www/test;

		fastcgi_index	index.php;
		fastcgi_split_path_info ^(.+\.php)(.*)$;
		fastcgi_param	SCRIPT_FILENAME	$document_root$fastcgi_script_name;
		fastcgi_param	PATH_INFO		$fastcgi_path_info;
		fastcgi_param	PATH_TRANSLATED	$document_root$fastcgi_path_info;
		fastcgi_pass    unix:/tmp/php-fpm.sock;
		include	fastcgi_params;
    }
}

指令的具體幫助請參考官方WIKI：

http://wiki.nginx.org/NginxHttpFcgiModule#fastcgi_split_path_info

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