1. Go to this page and download the library: Download yiier/yii2-china-region library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
yiier / yii2-china-region example snippets
public function actions()
{
$actions = parent::actions();
$actions['get-region'] = [
'class' => \yiier\region\RegionAction::className(),
];
return $actions;
}