CentOS 7下Nginx+CodeIgniter配置异常求助

Hey there! Let's get your CodeIgniter project running smoothly on Nginx. Since you've already got Nginx, MySQL, and php-fpm set up with a working phpinfo, we just need to tweak your Nginx config to handle CI's single-entry routing properly.

Common Pitfall You're Likely Hitting #

CodeIgniter relies on URL rewriting to funnel all requests through index.php (unlike Apache's .htaccess rules). Your config cuts off mid-location block, which means you're probably missing the critical rewrite logic and proper PHP handling that CI needs.

Here's a Complete, Working Server Block for Your CI Project #

Replace your incomplete server block with this, and adjust paths/PHP versions to match your setup:

server {
    listen 80;
    server_name 173.249.40.xxx;

    # Point root to your CodeIgniter project's root directory
    root /usr/share/nginx/html/ci;
    index index.php index.html index.htm;

    # Serve static files directly (css, js, images) to skip unnecessary PHP processing
    location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    # Block access to sensitive CI directories (never expose these publicly!)
    location ~ ^/(application|system|tests)/ {
        deny all;
        return 403;
    }

    # Core CI routing: send all non-static requests to index.php
    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    # Handle PHP files with php-fpm
    location ~ \.php$ {
        # Update this socket path to match your PHP version (check /run/php/ for options)
        fastcgi_pass unix:/run/php/php7.4-fpm.sock;
        fastcgi_index index.php;
        # Ensure the correct script path is passed to php-fpm
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

Critical Post-Config Checks #

• Verify php-fpm Socket Path: Run ls /run/php/ to see your actual socket file (e.g., php8.2-fpm.sock for PHP 8.2) and update the fastcgi_pass line accordingly.
• Tweak CI's config.php:
  • Set $config['base_url'] = 'http://173.249.40.xxx';
  • Set $config['index_page'] = ''; (this removes index.php from your URLs)
• Fix File Permissions: Make sure the Nginx user (usually www-data) has write access to CI's cache and logs directories:

  sudo chown -R www-data:www-data /usr/share/nginx/html/ci/application/{cache,logs}
  sudo chmod -R 755 /usr/share/nginx/html/ci/application/{cache,logs}
  

• Restart Services: Apply changes by restarting Nginx and php-fpm:

  sudo systemctl restart nginx
  sudo systemctl restart php7.4-fpm # Adjust version as needed
  

If It Still Doesn't Work #

Check Nginx's error log for specific clues about what's failing:

sudo tail -f /var/log/nginx/error.log

This will show you exact issues like permission errors, missing files, or php-fpm connection problems.

内容的提问来源于stack exchange，提问作者NomanJaved