How can PHP beginners troubleshoot errors related to class names not being found?

When PHP beginners encounter errors related to class names not being found, they should first check if the class name matches the actual class file name and if the file is included correctly. They should also ensure that the file path is correct and that the class is defined within the file. Additionally, checking for typos in the class name declaration is important.

// Example of including a file with a class definition
include 'MyClass.php';

// Instantiate the class
$obj = new MyClass();