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How to increase the file upload limit in PHP on an Ubuntu server with NGINX?

I have a PHP web application deployed on an Ubuntu server using the NGINX web server. When trying to upload files larger than 10 MB, I encounter an error. How can I increase the file upload limit in PHP and configure NGINX to support larger files?

Answers

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    James Smith

    Everything worked great.
    Your tips helped a lot!
    Something must not have updated when I checked, now everything works.

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    Jonas Becker

    If issues persist:

    Ensure your PHP code does not restrict the upload size. For example, in the upload form, add a hidden field MAX_FILE_SIZE:

    Check client-side JavaScript for any limitations on file size.

    Verify the file upload directory has the correct write permissions for PHP.

    Double-check that no other configuration files impose lower file size limits. Consult the code developer if you did not write it.

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    James Smith

    Did as you suggested, but the file won't upload...

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    Jonas Becker

    To increase the PHP upload limit on Ubuntu with NGINX:

    1. Modify php.ini settings
    Open the PHP-FPM php.ini file for editing:
    sudo nano /etc/php/7.x/fpm/php.ini
    Replace 7.x with your PHP version and use your preferred text editor if not nano.

    Locate and adjust the following parameters:
    upload_max_filesize = 50M
    post_max_size = 50M
    max_execution_time = 300
    max_input_time = 300
    memory_limit = 256M

    Ensure that post_max_size is not less than upload_max_filesize.

    Save and close the editor (Ctrl + O, Enter, then Ctrl + X in nano).

    2. Configure NGINX
    Open your site’s configuration file, usually in /etc/nginx/sites-available/:
    sudo nano /etc/nginx/sites-available/example.com

    Add or modify the client_max_body_size directive with the desired value (e.g., 50M) inside the server block:
    server {
    listen 80;
    server_name example.com www.example.com;

    client_max_body_size 50M;

    location / {
    proxy_pass http://localhost:3000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
    }

    # Other settings...
    }

    Save and close the editor.

    3. Check and Restart NGINX and PHP-FPM
    Verify NGINX configuration syntax:
    sudo nginx -t

    If no errors, reload NGINX:
    sudo systemctl reload nginx

    Restart PHP-FPM:
    sudo systemctl restart php7.x-fpm
    Replace 7.x with your PHP version.

    4. Confirm Settings via phpinfo()
    To verify the changes, create an info.php file in your website's root directory:
    sudo nano /var/www/html/info.php

    Add the following code:

    Open the file in a browser at http://example.com/info.php. Check upload_max_filesize and post_max_size values to ensure they are updated.

    After verification, delete info.php for security:
    sudo rm /var/www/html/info.php

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