nginx下无法打开php，报错[error] 5040#0: 1 connect failed 111: Connection ref

以下引自stackouverflow-----------------

http://stackoverflow.com/questions/15852884/nginx-connect-failed-error

报错信息如下：

location ~ .php$ {

try_files $uri =404; 

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 fastcgi_split_path_info ^(.+\.php)(/.+)$; 

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 fastcgi_pass unix:/var/run/php5-fpm.sock; 

 fastcgi_index index.php; 

 include fastcgi_params; 

 }

原因：

There are some situations when fastcgi_pass 127.0.0.1:9000; is present in server block and is responsible for this error, in such cases you need change it to fastcgi_pass unix:/var/run/php5-fpm.sock;. –  Kamil Zieliński Dec 8 '13 at 10:34

This is because php5-fpm now ships with the Unix socket listen = /var/run/php5-fpm.sockenabled in /etc/php5/fpm/pool.d/www.conf instead of the TCP socket listen = 127.0.0.1:9000. This is typically a little faster. (For google search purposes) ubuntu 14.04 nginx php5-fpm 502 Bad Gateway. I have a feeling a lot of people will be needing this in the near future. There are so many tutorials with the old socket in place. –  DutGRIFF May 9 at 6:09

以上就介绍了 nginx下无法打开php，报错[error] 5040#0: 1 connect failed 111: Connection ref ，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。