如何才能在数据库中保存1次

$ctr = 0;
foreach($_POST['field_name'] as $key => $field_name)
   foreach($_POST['field_name1'] as $key => $field_name1)
   {
{
   if($_POST['field_name'][$key]){
      if($_POST['field_name1'][$key]){
      $sqli = "INSERT INTO farmersform (IDTwo,IDThree,IDFour,FCrops,FLandArea) VALUES ('$IDTwo','$IDThree','$IDFour','$field_name','$field_name1')";
      $result = $conn->query($sqli);
      if($result){
         $ctr++;
      }
   }
}
$ctr = 0;
foreach($_POST['field_name'] as $key