How to Install and Enable the FFI Extension in PHP 8.2 on aaPanel (Ubuntu 22.04 Guide)

1. Connect to Your Server via SSH

• Use SSH to connect to your server where aaPanel is installed.

2. Install Required Dependencies

• Ensure you have the necessary build tools installed:
  

sudo apt update sudo apt install -y build-essential libphp-embed autoconf bison re2c libxml2-dev

3. Download the PHP 8.2 Source Code

• Navigate to a directory where you can download and extract the PHP source code:

bash cd /usr/local/src 
wget https://www.php.net/distributions/php-8.2.0.tar.gz 
tar -xzf php-8.2.0.tar.gz cd php-8.2.0/ext/ffi

4. Compile and Install the FFI Extension

• Run the following commands to compile and install the FFI extension:

phpize ./configure --with-php-config=/www/server/php/82/bin/php-config #Location of PHP Config
sudo make install

• The sudo make install command should automatically place the ffi.so file in the appropriate extension directory (in your case, /www/server/php/82/lib/php/extensions/no-debug-non-zts-20220829).

5. Enable the FFI Extension in php.ini

• Now, you need to enable the FFI extension in your PHP configuration. Open the php.ini file for PHP 8.2:

sudo nano /www/server/php/82/etc/php.ini

• Add the following line to enable the FFI extension:

extension=ffi.so

6. Restart PHP Services

• After making changes to the php.ini file, restart the PHP 8.2 service:

sudo /etc/init.d/php-fpm-82 restart

7. Verify the Installation

• Finally, check to see if the FFI extension is correctly installed and enabled:

php -m | grep ffi

• If the installation was successful, ffi should appear in the list of installed modules.

This process should ensure that the FFI extension is correctly compiled, installed, and activated within your aaPanel environment using PHP 8.2.