Nginx支持PHP的CI框架

1.找到CI库的配置文件修改

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

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.若是要作跳转的话，(好比：http://test.example.com/index.php/test,跳转
http://test.example.com/test.)能够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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前一段时间为了 PATH_INFO 问题搞得郁闷，来回忆下原来的配置（以CodeIgniter框架的配置为例）：

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;
    	}
}

虽然能够实现 PATH_INFO 了，可是仍是有缺陷，URL 中的中文不会被 urldecode。

好在，0.7.31 版本以上的 Nginx 新增了fastcgi_split_path_info 这个指令，如今配置起来清晰多了：

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;
    }
}

指令的具体帮助请参考官方WIKI：

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

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