i am not getting any result ..tried a lot ...but didnt know what is the problem.
no results after editing...nothing changed ...and is also not showing any error..please help..i need to submit a project.' Thankyou.
<form action="acat.php" method="post">  <!--Edit cat form-->
                        <div class ="form-group">
                            <label for ="title">Edit Category</label>
<?php
 if(isset($_GET['edit'])) {
  $editid = $_GET['edit']; 
  if (!$editid) {
  echo "CANNOT BE EDITED";
   } else { 
      $query = "SELECT * FROM categories WHERE cat_id = '$editid'"; 
     $edit_query = mysqli_query($con,$query); 
     }
    while($row=mysqli_fetch_assoc($edit_query)) {            
     $cat_id = $row['cat_id'];
     $cat_title = $row['cat_title'];
       ?>
       <input value="<?php if(isset($editid)) {echo $cat_title;} ?>"                                  
         class="form-control" type="text" name="update">                                                      
  <?php } } ?> 
 <?php
    if(isset($_POST['update_submit'])  && isset($_GET['edit'])) {
                $editid = $_GET['edit']; 
                $updatetitle = $_POST['update'];
          $query = "UPDATE categories SET cat_title='$updatetitle' where    
                 cat_id='$editid'";
          $update_query = mysqli_query($con,$query);
             if (!$update_query) {
          die('QUERY FAILED' . mysqli_error($con));
               }
           }
               ?>
                      </div>
                        <div class="form-group">
                           <input class="btn btn-primary"  type="submit" 
                             name="update_submit" value="Update Category">   
                         </div>
                         </form>
                        </div> 
