685     var $errstr = '';  variable in XML_RPC_Client
856             $this->errstr = 'send()\'s $msg parameter must be an'
858             $this->raiseError($this->errstr, XML_RPC_ERROR_PROGRAMMING);
935                                  $this->errno, $this->errstr, $timeout);
938                                  $this->errno, $this->errstr);
949                               . ' failed. ' . $this->errstr,
955                               . ' failed. ' . $this->errstr,
969             $this->errstr = 'Write error';
977             $this->errstr = 'RPC server did not send response before timeout.';
978             $this->raiseError($this->errstr, XML_RPC_ERROR_CONNECTION_FAILED);
1465                 $errstr = substr($data, 0, strpos($data, "\n") - 1);
1466                 error_log('HTTP error, got response: ' . $errstr);
1469                                           $errstr . ')');
1492                 $errstr = 'XML error at line 1, check URL';
1494                 $errstr = sprintf('XML error: %s at line %d',
1498             error_log($errstr);