src/Foundation/DatabaseManager.php
public function disconnect()
    {
        foreach ($this->connections as $dbKey => $connection) {
            $this->connections[$dbKey] = null;
            unset($this->connections[$dbKey]);
        }
    }
public function disconnect()
    {
        foreach ($this->connections as $dbKey => $connection) {
            $this->connections[$dbKey] = null;
            unset($this->connections[$dbKey]);
        }
    }
断开数据库链接