I am looking for an open source hotel booking system in PHP (both front-end and back-end). Software library. Software Engineering.

Data structures The most important thing in any program is the data. You always want to get good datastructures first, by understanding the data you fully understand the problem. In this case I'm concerned that you have a situation where too much of your underlying data is based on strings. You end up manipulating strings for all manner of things that would be more cleanly represented by other datastructures. Download Game Naruto Shippuden Untuk Hp Layar Sentuh here. Rooms for example are probably better stored as some data structure that specifically represents a room. Same goes for guests.

Refactoring There's a lot of code here that could be logically grouped together. For example there's a bunch of functions that have the following structure: def some_function(line:str): global bedroom_list #more code Usually this is a fairly strong indication that you should be making a class that contains bedroom_list along with all those function as methods. The main reason for this is that global mutable state introduces very hard to fix bugs and makes testing very difficult. How would you unit test this code now? By refactoring in this way you have a change to make your code testable which is a huge boost to the correctness and reliability of your code. This pays large dividends later in the time that is saved from needing to debug and also allows you to have much more confidence in the quality of your code when you make changes in the future. Regressions are much easier to find when your code has good test coverage.

Hp Elitebook 8530p Pci Serial Port Driver. This is completely setting aside concurrency issues, if you do end up adding concurrency later these global mutable state will cause you much much pain and suffering. Separation of logic and user interface The main guiding principle with these things is that changing the UI should not ever impact your backend data processing function. Currently you have functions that both process data AND interact with the user.

From a design perspective it is much cleaner if you have the data processing as a separate step from the user input/output. This is because you don't want a situation where making a change to the UI can create problem with your data processing, by completely separating that functionality it makes it a lot easier to avoid such issues. This has the additional benefit of making it much easier to say change to a GUI in the future or some other interface.