What are the potential risks of running PHP on a server without sufficient Linux knowledge?

Running PHP on a server without sufficient Linux knowledge can lead to security vulnerabilities, performance issues, and potential downtime. To mitigate these risks, it is crucial to have a good understanding of Linux server administration, including managing permissions, configuring security settings, and monitoring system resources.

<?php
// Implementing basic security measures in PHP code
// Example: Restricting file permissions to prevent unauthorized access

// Set file permissions to read and execute for owner, and no permissions for group and others
chmod("myfile.php", 0500);
?>