What potential pitfalls should be considered when modifying a third-party PHP script like the oxwall Community Script?

When modifying a third-party PHP script like the oxwall Community Script, potential pitfalls to consider include: 1. Breaking the script's functionality or compatibility with future updates. 2. Introducing security vulnerabilities if not done properly. 3. Losing support or documentation for the modified code. To mitigate these risks, it is essential to thoroughly test any modifications in a development environment and keep track of changes made for future reference.

// Example of modifying a function in the oxwall Community Script
// Original function
function original_function() {
    // Original code here
}

// Modified function
function modified_function() {
    // Modified code here
}