wikimedia / mediawiki

		return $this->getServerVersion();

	}

	public function bufferResults( $buffer = null ) {

		$res = !$this->getFlag( DBO_NOBUFFER );

		if ( $buffer !== null ) {

			$buffer ? $this->clearFlag( DBO_NOBUFFER ) : $this->setFlag( DBO_NOBUFFER );

		}

		return $res;

	}

	/**

	 * Turns on (false) or off (true) the automatic generation and sending

	 * @param null|bool $ignoreErrors

	 * @return bool The previous value of the flag.

	 */

	protected function ignoreErrors( $ignoreErrors = null ) {

		$res = $this->getFlag( DBO_IGNORE );

		if ( $ignoreErrors !== null ) {

			$ignoreErrors ? $this->setFlag( DBO_IGNORE ) : $this->clearFlag( DBO_IGNORE );

		}

		return $res;

	}

	public function trxLevel() {

		return $this->mTrxLevel;