I hope you're doing great. I have a question regarding handling optional parameters in PHP functions. I'm currently working on a project where I need to create a function that accepts optional parameters. However, I'm not sure about the best approach to tackle this.
Let's say I have a function called "calculatePrice()". The function takes two required parameters, which are the quantity and the unit price of a product. However, I also want to include optional parameters such as a discount percentage and a tax rate. These optional parameters should only be used if provided, and if not, the function should still work with default values.
Could anyone guide me on how to handle this situation? I would really appreciate any insights, suggestions, or code examples to help me understand how to properly handle optional parameters in PHP functions.
Thank you so much in advance!