Both buttons decrementing same value - php

Question

I am buildingd a library management system in PHP and HTMl.
I have some problem with the borrowing system where user can borrow books.
Here is my emitere-carti.php:
<form action="imprumutare.php" method="POST">
<table class="table table-dark">
<thead>
<tr>
<th>Imprumutare</th>
<th scope="col">Titlu </th>
<th scope="col">Autor</th>
<th scope="col">Categorie</th>
<th scope="col">Stoc</th>
</tr>
</thead>
<tbody>
<?php
$selectare="SELECT * FROM carti";
$rezultat=mysqli_query($conn,$selectare);
if(mysqli_num_rows($rezultat)>0){
while($row=mysqli_fetch_assoc($rezultat)){
$carte_nume=$row['titlu'];
$disabled=$row['stoc']>0 ? "" :"disabled";
?>
<tr>
<td><input type="submit" name="test" class="btn btn-secondary"
value="Imprumutare" <?php echo $disabled;?>></input>
<td><input type="text" name="nume" value="<?php echo $row['titlu'];?
>"></input></td>
<td><?php echo $row['autor'];?></td>
<td><?php echo $row['categorie'];?></td>
<td><?php echo $row['stoc'];?></td>
</tr>
<?php
}
}
?>
</tbody>
</table>
</form>
Here is my imprumutare.php(that means borrowing):
include('conexiune.php');
//sfarsit if
//Imprumutare
if(isset($_POST['test'])){
$id=$_POST['identificator'];
$nume_carte=$_POST['nume'];
$sql_rezervare="UPDATE carti SET stoc=stoc-1 WHERE
titlu='$nume_carte' ";
if( mysqli_query($conn,$sql_rezervare)){
header('location:emitere_carti.php');
}
else{
die(mysqli_error($conn));
}
}
Here is a screenshot about what I am talking:
So my problem is both buttons are decrementeing the same value(the value of stoc).
Can someone help me?