Navigate to the base of your plugin/theme direcory and run the following command
composer require osenco/wp-settings
Remember to include the autoloder in your plugin main file, or your theme's functions.php
require_once __DIR__.'/vendor/autoload.php';
See this sample class for example usage.
You can use this package as a base to create your plugin or theme in a purely OOP PHP implementation. Just install it as above and create an src
directory in your theme/plugin directory that will house all your namespaced code.
Remember to edit the composer.json file to include an autoloader for your custom code.
composer.json
...
"autoload": {
"psr-4": {
"Your\\Namespace\\": "src/"
}
}
...