Mac上的nginx不会运行PHP

刚刚在我的Mac上酿造了nginx和php-fpm（10.9）。我使用了本教程：http://rtcamp.com/tutorials/mac/osx-brew-php-mysql-nginx/

所以但是当我在ngix conf中建立我的第一个"服务器"博客时，php文件总是会被下载，我在谷歌上找不到任何解决方案。

这是我的共识：

http {
    include /usr/local/etc/nginx/sites-enabled/pma.dev.conf;
    include /usr/local/Sites/localsites.conf;   
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       8080;
        server_name  localhost;
        location / {
            root   html;
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
    server {
        server_name  pma.dev;
        listen       pma.dev:9090;
        location / {
            root   /usr/local/share/phpmyadmin;
            index  index.php;
    }
        location ~ '.php$ {
            try_files $uri =404;
            fastcgi_split_path_info ^(.+'.php)(/.+)$;
            fastcgi_index index.php;
            include fastcgi_params;
        } 
    }
}