What are best practices for including external classes like "Formular" and "Verbindung" in PHP scripts?

When including external classes like "Formular" and "Verbindung" in PHP scripts, it is best practice to use the "require_once" or "include_once" functions to ensure that the classes are only included once to prevent any conflicts or errors. This helps to organize your code and make it more maintainable.

php

// Include the Formular class
require_once 'Formular.php';

// Include the Verbindung class
require_once 'Verbindung.php';

// Your PHP script code here

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What are best practices for including external classes like "Formular" and "Verbindung" in PHP scripts?

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