$eventNameCustomDataTypeID = array_search('ParticipantEventName', $customDataType);
$eventTypeCustomDataTypeID = array_search('ParticipantEventType', $customDataType);
$allRoleIDs = explode(CRM_Core_DAO::VALUE_SEPARATOR, $values[$participantID]['role_id']);
$eventNameCustomDataTypeID = array_search('ParticipantEventName', $customDataType);
$eventTypeCustomDataTypeID = array_search('ParticipantEventType', $customDataType);
$allRoleIDs = explode(CRM_Core_DAO::VALUE_SEPARATOR, $values[$participantID]['role_id']);