ohctech_p8/save_event.php

<?php 
include('includes/config/config.php');
$event_id = $_POST['event_id'];
$event_name =$_POST['event_name'];
$event_desc = $_POST['event_desc'];
$event_code = $_POST['event_code'];
if(!empty($event_id)){
$query = "update event set event_name = '$event_name', event_desc = '$event_desc', event_code = '$event_code',modified_by = '".$_SESSION['user_id']."' where event_id = 
'".$event_id."'    ";
}
else {
$query = "insert into event(event_name,event_desc,event_code,modified_by) 
		  values ('$event_name','$event_desc','$event_code','".$_SESSION['user_id']."' ); ";
}
if (!$result = @mysqli_query($conn,$query)) {
            die(mysqli_error($conn));
}
?>