1722361063

Conditional structures in programming. Exemplified with Python, Php, Lua and Cpp


Conditional structures are fundamental in programming because they allow a program to make decisions based on specific conditions. Below, I’ll explain how to work with conditional structures in some of the programming languages you're interested in: Python, PHP, C++, and Lua. In Python, conditional structures are straightforward and intuitive. You use `if`, `elif` (short for "else if"), and `else`. ```py age = 20 if age < 18: print("You are a minor.") elif age < 65: print("You are an adult.") else: print("You are a senior.") ``` In PHP, conditional structures are similar to those in other C-style languages. You use `if`, `elseif`, and `else`. ```php $age = 20; if ($age < 18) { echo "You are a minor."; } elseif ($age < 65) { echo "You are an adult."; } else { echo "You are a senior."; } ``` In C++, conditional structures also follow the C-style pattern. You use `if`, `else if`, and `else`. ```cpp #include <iostream> using namespace std; int main() { int age = 20; if (age < 18) { cout << "You are a minor." << endl; } else if (age < 65) { cout << "You are an adult." << endl; } else { cout << "You are a senior." << endl; } return 0; } ``` In Lua, conditional structures use `if`, `elseif`, and `else`. ```lua local age = 20 if age < 18 then print("You are a minor.") elseif age < 65 then print("You are an adult.") else print("You are a senior.") end ``` ## <br>Nested Conditional Structures You can nest conditional structures within others to create more complex logic. Here’s an example in Python: ```py age = 20 has_license = True if age >= 18: if has_license: print("You can drive.") else: print("You need a license to drive.") else: print("You are too young to drive.") ``` ## <br>Ternary Operator Some languages also support ternary operators to simplify simple conditional expressions. Here’s an example in PHP: ```php $age = 20; echo ($age >= 18) ? "You are an adult." : "You are a minor."; ``` ### <br>Final Considerations + Readability: Although nested conditional structures can be powerful, they can become difficult to read and maintain. Consider refactoring the code to improve readability. + Best Practices: Use best practices, such as proper indentation and clear comments, to ensure the code is easy to understand. If you need more details you can join one of our [<u>chat rooms</u>](https://chat-to.dev/) and leave your question there, and it will be answered as soon as possible.

(3) Comments
xReqX
xReqX
1722381240

unrelated to the lesson. does ++ mess up .md or something? Otherwise ive never heard it called cpp b4, least not here in usa.

amargo85
amargo85
1722414540

I've seen it written like this in various books and websites, so I decided to imitate it 😅 here's an example👇 ![linkCpp](https://i.imgur.com/CC4gOtQ.jpeg)

xReqX
xReqX
1722464812

oh wow, thats new to me. b4 i kinda just figured pp was plusplus or that it was a misstype cuz p and + close on a keyboard. None the less thanks 4 the pic, interesting info :)


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