ohctech_p8/save_bussiness_unit.php

<?php 
include('includes/config/config.php');
include('log_entry.php');
$bu_id = $_POST['bu_id'];
$bu_name =$_POST['bu_name'];
$bu_headname =$_POST['bu_headname'];
$bu_email =$_POST['bu_email'];

if(!empty($bu_id)){
$query = "update bussiness_unit set bu_name = '$bu_name',bu_id = '$bu_id',bu_headname = '$bu_headname',bu_email = '$bu_email',modified_by = '".$_SESSION['user_id']."' where bu_id='".$bu_id."'"; 

}
else {
$query = "insert into bussiness_unit(bu_name, bu_id,bu_headname,bu_email, modified_by) 
		  values ('$bu_name','$bu_id','$bu_headname','$bu_email','".$_SESSION['user_id']."' ); ";
}
error_log($query);
if (!$result = @mysqli_query($conn,$query)) {
            die(mysqli_error($conn));
}

?>