What potential pitfalls should be avoided when making changes to the php.ini file in PHP installations on Linux systems?

When making changes to the php.ini file in PHP installations on Linux systems, it is important to avoid potential pitfalls such as syntax errors, incorrect configuration values, and unintended consequences on the overall system performance. To prevent these issues, it is recommended to make a backup of the original php.ini file before making any changes, carefully review the documentation for each configuration directive, and test the changes in a controlled environment before deploying them to a production server.

// Example of making changes to the php.ini file in PHP installations on Linux systems
// Make a backup of the original php.ini file
sudo cp /etc/php/7.4/apache2/php.ini /etc/php/7.4/apache2/php.ini.bak

// Open the php.ini file for editing
sudo nano /etc/php/7.4/apache2/php.ini

// Make changes to the desired configuration directives
// For example, to increase the maximum execution time
max_execution_time = 60

// Save the changes and restart the PHP service
sudo systemctl restart apache2