Are aliases in PHP case-insensitive, and if not, what are the implications for class naming and file resolution?

Aliases in PHP are case-insensitive, meaning that the case of the alias does not matter when using it in code. However, this can lead to issues with class naming and file resolution, especially on case-sensitive file systems. To avoid problems, it's best to ensure that your aliases match the case of the actual class or file names.

// Example of using aliases with correct case
use MyNamespace\MyClass as MyClass;

$obj = new MyClass();