What best practices should be followed when integrating third-party code or plugins into a PHP-based website to avoid compatibility issues?

When integrating third-party code or plugins into a PHP-based website, it is important to follow best practices to avoid compatibility issues. One common issue is namespace conflicts, where two pieces of code define the same class or function. To solve this, you can use namespaces to encapsulate the third-party code and prevent conflicts with your own code.

<?php
namespace ThirdPartyPlugin;

// Third-party code goes here
class ThirdPartyClass {
    // Class implementation
}

?>