sql_query("DELETE FROM `report_approver` WHERE `report_type_id` = '$report_type_id' "); foreach ($employee_ids as $data){ if(isNotEmpty($data)){ $db -> sql_query("INSERT INTO `report_approver`(`report_type_id`, `employee_id`) VALUES ('$report_type_id','$data')"); } } function isNotEmpty($data){ return preg_match('/\S/', $data); } ?>