function()
{
/**
* Gets the created hash.
*
* @return string
*/
public function getHash(): string;
/**
* Checks if the database is ready to process a query.
* @return bool
*/
public function check(): bool;
/**
* Sets the error mode.
*
* @param string $mode
*/
public function setErrorMode(string $mode);
/**
* @return string
*/
public function getErrorMode(): string;
/**
* Returns the last error.
*
* @return string|null
*/
public function getLastError(): ?string;
/**
* Returns the current database selected by the current connection.
*
* @return string|null
*/
public function getCurrent(): ?string;
/**
* Returns the host of the current connection.
*
* @return string|null
*/
public function getHost(): ?string;
/**
* @return string
*/
public function getConnectionCode();
/**
* Return the last config for this connection.
*
* @return array|null
*/
public function getLastCfg(): ?array;
/**
* @param array $cfg The user's options
* @return array|null The final configuration
*/
}
