require_once 'vendor/autoload.php'; $loader = \ComposerAutoloaderInit::getLoader();
use Symfony\Component\HttpFoundation\ClassLoader\ClassLoader; $loader = new ClassLoader(); $loader->addPrefix('Acme', '/path/to/acme/src');This code sets up a class loader using the Symfony package. The "addPrefix" method is used to add a package prefix "Acme" and the corresponding path is set to "/path/to/acme/src". In both examples, the packages being loaded are determined by the paths set in the code. In Example 1, the package being loaded is determined by Composer. In Example 2, the package being loaded is determined by Symfony. Overall, the getDefault function is a useful tool for loading packages and libraries in PHP. With the correct paths and prefixes set, you can easily load and use different packages in your code.