What are the potential reasons for a PHP script not functioning properly on a server, despite following installation instructions?

There could be various reasons why a PHP script is not functioning properly on a server despite following installation instructions. Some common reasons include incorrect file permissions, missing dependencies, syntax errors, or issues with the server configuration. To solve this issue, you can start by checking the server error logs for any clues on what might be causing the problem. Additionally, ensure that all necessary PHP extensions are installed and correctly configured.

// Example code snippet to check for errors in PHP script
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Your PHP script code here