<?php
$dbHost = getenv('MYSQL_HOST') ?: '127.0.0.1';
$dbPort = getenv('MYSQL_PORT') ?: '';
$dbName = getenv('MYSQL_DATABASE') ?: 'muchang';
$dsn = sprintf('mysql:host=%s%s;dbname=%s', $dbHost, $dbPort !== '' ? ';port=' . $dbPort : '', $dbName);

return [
    'class' => 'yii\db\Connection',
    'dsn' => $dsn,
    'username' => getenv('MYSQL_USER') ?: 'muchang',
    'password' => getenv('MYSQL_PASSWORD') ?: 'h2aB53tPnDZnYWnB',
    'charset' => 'utf8',
//    'tablePrefix' => 'farm_',
];