Nginx+PHP-FPM——Nginx日志：[Primary script unknown] && 网页：[file not found. ]解决方案

问题描述
访问Nginx服务器中.php文件，提示 file not found。

Nginx-error.log日志：

2020/02/07 13:01:38 [error] 26483#26483: *398 FastCGI sent in stderr: “Primary script unknown” while reading response header from upstream, client: 112.17.247.190, server: _, request: “GET /JudgeOnline/index.php HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9000”, host: “47.98.237.181”

问题分析
1、php-fpm没有找到php脚本文件的所在位置

2、权限不足

解决方案
方法一：修改Nginx配置

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
注：

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;#脚本文件请求的路径
fastcgi_param SCRIPT_NAME $fastcgi_script_name; #脚本名称
fastcgi_param DOCUMENT_ROOT $document_root; #网站的根目录。在server配置中root指令中指定的值
同时需要确保server中包含root 选项，否则会提示document_root没有定义

例：

location ~ .php$ {
# # NOTE: You should have “cgi.fix_pathinfo = 0;” in php.ini
#
# # With php5-cgi alone:
fastcgi_index index.php;
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_split_path_info ^(.+.php)(/.+)$;
include fastcgi_params;
# # With php5-fpm:
}