What are the implications of case sensitivity in file names and class names when developing PHP scripts for different operating systems?

Case sensitivity in file names and class names can cause issues when developing PHP scripts for different operating systems, as some systems (like Windows) are case-insensitive while others (like Linux) are case-sensitive. To avoid problems, it's important to ensure consistency in file and class names throughout your code. One way to solve this issue is to always use the correct case when referencing files and classes in your code.

// Example of using correct case when including a file and instantiating a class
require_once 'MyClass.php'; // Make sure the filename matches the actual filename on disk
$myObject = new MyClass(); // Make sure the class name matches the actual class name in the file