$sql = "INSERT INTO civicrm_contribution (contact_id, financial_type_id, payment_instrument_id, receive_date, total_amount, currency, receipt_date, source, contribution_status_id)
SELECT `contact_id`, $financialTypeID, $paymentInstrumentID, now(), `fee_amount`, 'USD', now(), CONCAT(ce.title, ' : Offline registration'), 1 FROM `civicrm_participant` cp
LEFT JOIN civicrm_event ce ON ce.id = cp.event_id
$sql = "INSERT INTO civicrm_contribution (contact_id, financial_type_id, payment_instrument_id, receive_date, total_amount, currency, receipt_date, source, contribution_status_id)
SELECT `contact_id`, $financialTypeID, $paymentInstrumentID, now(), `fee_amount`, 'USD', now(), CONCAT(ce.title, ' : Offline registration'), 1 FROM `civicrm_participant` cp
LEFT JOIN civicrm_event ce ON ce.id = cp.event_id