How can namespaces be utilized effectively in PHP to prevent global namespace clutter when defining temporary helper functions?

To prevent global namespace clutter when defining temporary helper functions in PHP, namespaces can be utilized effectively. By encapsulating these helper functions within a specific namespace, you can avoid polluting the global namespace and ensure that your functions are organized and easily accessible within their designated namespace.

namespace MyHelpers {
    function myHelperFunction() {
        // Function implementation
    }
}