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Nginx is a high-performance web server and reverse proxy server, widely used in the Internet industry. However, when using Nginx, you may encounter the problem of not being able to find the index.php file. This may cause your website to be inaccessible, thereby affecting the company's business and the user experience of the website. This article will discuss the step-by-step solution to the problem that nginx cannot find index.php.
1. Check the file path
When nginx cannot find the index.php file, first check whether the file path is correct. In the nginx configuration file, you need to configure the root directory, which is the site root directory. If the site root directory is not configured correctly, nginx will not be able to find the index.php file. Therefore, you first need to determine whether the site root directory is configured correctly.
The method is as follows:
For example, if our site root directory is in the /var/www/html directory, then the nginx configuration file should have the following configuration:
server {
listen 80;
server_name xxx.com;
root /var/www/html;
index index.php index.html index.htm;
}
After this location is configured correctly, if If you still cannot access the index.php file, you need to search further.
2. Check Nginx’s PHP parser configuration
Check whether Nginx’s PHP parser configuration is set correctly. You can find a line statement similar to the following in the Nginx configuration file:
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass localhost:9000;
fastcgi_index index.php;
include fastcgi_params;
}
If the statement is not configured correctly, then Nginx cannot correctly find the index.php file.
The specific configuration steps are as follows:
root /var/www/html; index index.php index.html index.htm;
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass localhost:9000;
fastcgi_index index.php;
include fastcgi_params;
}
Among them, fastcgi_pass is the address and port number of the specified PHP interpreter, and fastcgi_index is the file name that is searched by default when accessing PHP files. For example, the above configuration is to find the index.php file.
3. Check the PHP-FPM configuration
In addition to the nginx configuration file, you also need to check the PHP-FPM configuration file. If the PHP interpreter cannot interpret the PHP file, Nginx will not find the index.php file.
The specific configuration steps are as follows:
sudo vi /usr/local/etc/php-fpm.conf
pm.max_children = 50 pm.start_servers = 5 pm.min_spare_servers = 2 pm.max_spare_servers = 8
The above instructions are all performance tuning instructions for PHP-FPM. You can also improve the performance of PHP-FPM by appropriately modifying these instructions.
4. PHP installation issues
If the nginx configuration file, Nginx PHP parser configuration, and PHP-FPM configuration are all correct, but the index.php file still cannot be found, then it is only possible It's because PHP was not installed successfully.
You can execute the following command to check whether PHP is installed successfully:
php -v
If PHP is not installed successfully, you can follow the following steps to install it:
sudo apt-get update sudo apt-get install php-fpm
sudo vim /usr/local/etc/php-fpm.d/www.conf
Find the user and group items and modify them to www-data .
sudo systemctl restart php-fpm
After completing the above steps, check the nginx configuration file, Nginx PHP parser configuration, and PHP-FPM configuration to confirm that all If the parameters are set correctly, the problem of not being able to find the index.php file should no longer occur.
Summary
When using Nginx, the problem of not being able to find the index.php file may have a certain impact on your business. However, this problem can be solved quickly by just checking the above steps. Of course, we can also configure Nginx's url routing so that Nginx can handle url requests more flexibly and improve the performance and availability of web applications.
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