php.md

PHP

• Install the missing PHP 8.3 extensions using:
• sudo apt install php8.3-xml php8.3-dom php8.3-simplexml php8.3-soap php8.3-amqp
• sudo systemctl restart php8.3-fpm
• sudo systemctl restart apache2 # or nginx if using that

✅ 1. Check installed PHP versions

update-alternatives --list php OR ls /usr/sbin/php*

✅ 2. Install the target PHP-FPM version (if not already)

sudo apt install php8.2 php8.2-fpm

✅ 3. Switch CLI PHP version (optional)

sudo update-alternatives --config php

✅ 4. Configure Apache to use the correct PHP-FPM

    If you're using Apache with php-fpm, make sure you have the correct proxy_fcgi settings.

    A. Disable the old PHP module (if any):
    `sudo a2dismod php8.1`

Change in any of the PHP ini

sudo nano /etc/php/8.3/fpm/php.ini

sudo nano /etc/php/8.3/cli/php.ini

sudo systemctl restart php8.3-fpm

sudo systemctl restart apache2