html - How to pass text/variable from php script to input value?

I need to get id and name from URL when I click edit anchor and I get it actually but I can't post data to input value to make an update by the text input ... here is my HTML form :

<form action="" method="post">
  <div class="form-group">
   <label for="cc-payment" class="control-label mb-1">Category Name</label>
   <input id="cc-pament" name="category-name" type="text" class="form-control" value="">
  </div>
  <div>
   <button id="payment-button" type="submit" name="submit" class="btn btn-lg btn-info">Save
   </button>
  </div>
</form>
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here is HTML TABLE And have the Edit anchor to go if isset

<thead>
 <tr>
   <th>ID</th>
   <th>Name</th>
   <th>Edit</th>
   <th>Delete</th>
 </tr>
</thead>
<tbody action="" method="get">
    <?php 
      $query = " select * from category ";
      $result = mysqli_query($conn,$query);
      while($cat = mysqli_fetch_assoc($result)){
        echo "<tr>";
        echo "<td>{$cat['cat_id']}</td>";
        echo "<td>{$cat['cat_name']}</td>";
        echo "<td><a href='?edit={$cat['cat_id']}&category_name={$cat['cat_name']}'  name='edit' 
              class='btn 
        btn-info'> Edit</a></td>";
        echo "<td><a href='delete_category.php?id={$cat['cat_id']}' class='btn btn-danger'>Delete</a> 
        </td>";
        echo "</tr>";
        }
    ?>
</tbody>
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here is the PHP code

 if (isset($_GET['edit'])) {
    # code...
    $name= $_GET['category_name'];
    echo $_POST['category-name']= $name;
    }
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