ohctech_p8/save_medicine.php

<?php 
include('includes/config/config.php');
$medicine_id=$_POST['medicine_id'];

$medicine_name = $_POST['medicine_name'];
$medicine_frequency = $_POST['medicine_frequency'];


$query="";
if(!empty($medicine_id)){
$query = "update medicine_frequency set medicine_name='$medicine_name',medicine_frequency ='$medicine_frequency',modified_by = '".$_SESSION['user_id']."' where medicine_id = 
'".$medicine_id."'";
}
else {
$query = "insert into medicine_frequency(medicine_name,medicine_frequency,modified_by) 
		  values ('$medicine_name','$medicine_frequency','".$_SESSION['user_id']."' )";
}
echo $query;
if (!$result = @mysqli_query($conn,$query)) {
            die(mysqli_error($conn));
}
?>