Windows 10下NGINX+PHP+FastCGI报错“No input file specified”求助

Hey KellyM, I’ve been there too—this error can be so frustrating when you’ve tried all the obvious fixes already. Let’s dig into some Windows-specific tweaks that might be the missing piece for you:

• Don’t overlook Windows file permissions
  Unlike Linux, Windows’ permission model is easy to miss. Make sure the user running Nginx (default is NT AUTHORITY\SYSTEM, or a custom user if you set one) has Read & Execute, List Folder Contents, and Read permissions for:

  • Your entire PHP application directory
  • The PHP interpreter’s installation folder
    To set this: Right-click your project folder → Properties → Security → Edit → Add the Nginx user (type NT AUTHORITY\SYSTEM if using the default) → Apply permissions to all subfiles/folders.

• Validate path formats and FastCGI alignment
  Windows handles paths differently, so double-check these:

  • Use forward slashes in Nginx’s root directive (e.g., root C:/web/myapp/public; instead of C:\web\myapp\public—Nginx can parse backslashes, but forward slashes avoid escape character issues).
  • Confirm fastcgi_pass matches your PHP-FPM listen config. On Windows, PHP-FPM defaults to 127.0.0.1:9000—make sure the PHP-FPM service is running (check Services for "PHP FastCGI Process Manager").

• Lock down your index and try_files logic

  • Ensure index.php is first in your index directive: index index.php index.html index.htm;
  • If your app uses a single entry point (like Laravel’s public/index.php), make sure root points directly to the public folder, and add this location block to route all requests through the entry file:

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }
    

• Audit PHP-FPM’s www.conf settings
  Open www.conf (usually in [PHP安装目录]/php-fpm.d/) and verify:

  • listen = 127.0.0.1:9000 matches what’s in your Nginx config.
  • user and group are set to the same user running Nginx (default is NT AUTHORITY\SYSTEM).
  • Comment out any php_admin_value[doc_root] line—this can override Nginx’s document_root and cause path mismatches.

• Test with a minimal configuration
  Strip down your Nginx server block to the basics to rule out conflicting rules:

  server {
      listen 80;
      server_name localhost;
      root C:/web/myapp/public;
      index index.php index.html;
  
      location ~ \.php$ {
          fastcgi_pass 127.0.0.1:9000;
          fastcgi_index index.php;
          include fastcgi.conf;
      }
  }
  

  Create a simple info.php file (<?php phpinfo(); ?>) in your root folder, restart Nginx and PHP-FPM, then visit http://localhost/info.php. If this works, gradually re-add your original config lines to find the conflicting setting.

内容的提问来源于stack exchange，提问作者KellyM