What are the best practices for handling deprecated functions in PHP?

Deprecated functions in PHP are functions that are no longer recommended for use and may be removed in future versions of PHP. To handle deprecated functions, it is recommended to replace them with alternative functions or methods that achieve the same result. This ensures that your code remains compatible with future versions of PHP.

// Deprecated function to be replaced
deprecated_function();

// Updated function to replace the deprecated function
alternative_function();