Submit two table of data in one form - php

Question

I have a form which contain two table. Each of the table able to add table row. which mean when submit a form using isset $_POST by using "for" right? the things that i concern about is how to submit a single form which contain two table (both of them have function add table row) in single database table. Both of table contain slightly different attribute but in the same database table. i was searching this for a week and didnt found solution yet. I only able to submit a form which contain one table (which have add table row). How about if there is two table but insert into same database table?
if(isset($_POST['submitbtn'])){
//others
$merchant = $_POST['merchant'];
$remark = $_POST['remark'];
$docno = $_POST['docno'];
$category = $_POST['category'];
$claim_amount = $_POST['claim_amount'];
//airfare
$airline = $_POST["airline"];
$origin = $_POST["origin"];
$destination = $_POST["destination"];
$descript = $_POST["desc"];
$docno_air = $_POST["docno_air"];
$category_air = $_POST["category_air"];
$claim_amount_fare = $_POST["claim_amount_fare"];
$email = $ColUser['Email'];
$euser = $_SESSION['UserId'];
$reportName = $_POST['reportname'];
$start_date = date("Y-m-d");
$status="open";
$purpose = $_POST["purpose"];
//get approval
$getapproval = "SELECT * FROM `approve_by` WHERE `user_id` = '".$_SESSION['UserId']."'";
$approvalget = mysqli_query($mysqli,$getapproval);
$appid = mysqli_fetch_assoc($approvalget);
$app1 = $appid['approval_1'];
$app2 = $appid['approval_2'];
$app3 = $appid['approval_3'];
//generate travel id
$travelprefix= "SELECT * FROM `prefix` WHERE `description` = 'Travel'";
$result_travel = mysqli_query($mysqli, $travelprefix);
$travel_info = mysqli_fetch_assoc($result_travel);
$travel_pre = $travel_info['prefix'];
$travel_old_num = $travel_info['running_number'] + 1;
$travel_new = sprintf("%05d", $travel_old_num);
$travel_date_append = date('mY');
$travel_number = $travel_pre."-".$travel_date_append."-".$travel_new;
//generate report id
$reportprefix= "SELECT * FROM `prefix` WHERE `description` = 'REPORT'";
$result_report = mysqli_query($mysqli, $reportprefix);
$report_info = mysqli_fetch_assoc($result_report);
$report_pre = $report_info['prefix'];
$report_old_num = $report_info['running_number'] + 1;
$report_new = sprintf("%05d", $report_old_num);
$report_date_append = date('mY');
$report_number = $report_pre."-".$report_date_append."-".$report_new;
if (!empty($_POST['airline']))
{
for ($i = 0; $i < count($_POST["airline"]); $i++){
$airline = $_POST["airline"][$i];
$origin = $_POST["origin"][$i];
$destination = $_POST["destination"][$i];
$descript = $_POST["desc"][$i];
$docno_air = $_POST["docno_air"][$i];
$category_air = $_POST["category_air"][$i];
$claim_amount_fare = $_POST["claim_amount_fare"][$i];
//$upload_dir = 'upload';
//$targetPath = dirname( __FILE__ ) . DIRECTORY_SEPARATOR . $upload_dir . DIRECTORY_SEPARATOR;
$targetPaths="upload/";
$filefare = $targetPaths.rand(1000,100000)."-".$_FILES['bill_image_air']['name'][$i];
$file_loc = $_FILES['bill_image_air']['tmp_name'][$i];
$file_basename = substr($filefare, 0, strripos($filefare, '.'));
//$flink='http://localhost/new_exp/'.$file;
move_uploaded_file($file_loc,$filefare);
$mrecordprefix= "SELECT * FROM `prefix` WHERE `description` = 'Category'";
$mresult_record = mysqli_query($mysqli, $mrecordprefix);
$mrecord_info = mysqli_fetch_assoc($mresult_record);
$mrecord_pre = $mrecord_info['prefix'];
$mrecord_old_num = $mrecord_info['running_number'] + 1;
$mrecord_new = sprintf("%05d", $mrecord_old_num);
$mrecord_date_append = date('mY');
$mrecord_number = $mrecord_pre."-".$mrecord_date_append."-".$mrecord_new;
$save_running_records = "UPDATE `prefix` SET `running_number`=? WHERE `description` = 'Category'";
$save_running_report = "UPDATE `prefix` SET `running_number`=? WHERE `description` = 'Report'";
$save_running_travel = "UPDATE `prefix` SET `running_number`=? WHERE `description` = 'Travel'";
$save_new_record = "INSERT INTO `report`(`reportname`, `report_ref`, `UserId`, `CategoryId`, `travel_record`, `remark`, `claim_amount`, `bill_image`, `bill_image_type`, `docno`, `origin`, `airline`, `destination`, `email_from`, `approval_1`, `approval_2`, `approval_3`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
$save_count = "INSERT INTO `categorycount`(`CategoryId`, `amount`, `userid`, `categoryno`) VALUES (?, ?, ?, ?)";
$stmt6 = $mysqli->prepare($save_running_records);
$stmt4 = $mysqli->prepare($save_running_report);
$stmt2 = $mysqli->prepare($save_running_travel);
$stmt5 = $mysqli->prepare($save_new_record);
$stmt7 = $mysqli->prepare($save_count);
$stmt6->bind_param('s', $mrecord_old_num);
$stmt4->bind_param('s', $report_old_num);
$stmt2->bind_param('s', $travel_old_num);
$stmt5->bind_param('ssiisssbssssssiii', $reportName, $report_number, $euser, $category_air, $travel_number, $descript, $claim_amount_fare, $filefare, $filefare, $docno_air, $origin, $airline, $destination, $email, $app1, $app2, $app3);
$stmt7->bind_param('isis', $category_air, $claim_amount_fare, $euser, $mrecord_number);
if ($stmt5->execute() == false){
echo 'Fifth query failed: ' . $mysqli->error;
} else {
if ($stmt2->execute() == false){
echo 'gl B query failed: ' . $mysqli->error;
} else {
if ($stmt4->execute() == false){
echo 'gl B query failed: ' . $mysqli->error;
} else {
if ($stmt7->execute() == false) {
echo 'gl B query failed: ' . $mysqli->error;
} else {
if($stmt6->execute() == false){
echo 'gl C query failed: ' . $mysqli->error;
}
$stmt6->close();
}
$stmt7->close();
}
$stmt4->close();
}
$stmt2->close();
}
$stmt5->close();
}
}
airfare table image
others expenses table image
My current problem is now how to handle if table in other expense tab is empty? because when i try to submit form and fill in all the input except for the others expense tab table which i let it empty. when i submit the form, the empty row in other expense tab table is insert in database table as well..