/**
* Connects to the database using the options provided to the class constructor.
*
* @return boolean Returns `true` if a database connection could be established, otherwise
* `false`.
*/
public function connect()
{
if (!$this->_config['dsn']) {
$host = $this->_config['host'];
list($host, $port) = explode(':', $host) + [1 => "3306"];
$dsn = "mysql:host=%s;port=%s;dbname=%s";
$this->_config['dsn'] = sprintf($dsn, $host, $port, $this->_config['database']);
}
if (!parent::connect()) {
return false;
}
$info = $this->connection->getAttribute(PDO::ATTR_SERVER_VERSION);
$this->_useAlias = (bool) version_compare($info, "4.1", ">=");
return true;
}
