server {
    listen       443;
    listen       80;
    server_name  caoleizhen.cn;
    root   /var/www/thinkphp5.1/public/;
    index  index.html index.htm index.php;

    #ssl
    ssl on;

    ssl_certificate  /var/www/thinkphp5.1/extend/1_www.qwer.cn_bundle.crt;
    ssl_certificate_key /var/www/thinkphp5.1/extend/2_www.qwer.cn.key;

    ssl_session_timeout 5m;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        if (!-e $request_filename) {
            rewrite . /index.php last;
        }
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php|\.html$ {
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

配置完无法访问php文件，可能出现的问题主要在location配置

location ~ \.php|\.html$ {
        fastcgi_pass   127.0.0.1:9000;//查看php-fpm是否绑定9000端口
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;//项目root目录是否正确，要写成全局变量，再到location里面，这里就访问不到
        include        fastcgi_params;
    }