QuickBooks/IPP/Service.php
protected function _setError($errcode, $errtext = '', $errdetail = '')
	{
		$this->_errcode = $errcode;
		$this->_errtext = $errtext;
		$this->_errdetail = $errdetail;
	}
protected function _setError($errcode, $errtext = '', $errdetail = '')
	{
		$this->_errcode = $errcode;
		$this->_errtext = $errtext;
		$this->_errdetail = $errdetail;
	}
Set an error message

@param integer $errnum	The error number/code
@param string $errmsg	The text error message
@return void