Cannot delete first item from mi shopping cart PHP

[dennisg001]

Hi, I am making a shopping cart and I have a problem. My code to remove the items from the cart works except for the first added item; I can delete all but that one.

This is the form to remove the items.

   

<form class="col-md-12" method="POST" action="" id="formremove">
                        <input type="hidden" name="id_prod" value="<?php echo $row['id_producto'] ?>">
                        <input type="submit" name="btn-remove" class="btn btn-info btn-sm" id="remove" value="X">
                      </form>

And this is the php

   

if ($_POST['btn-remove']) {
	  $id_user=$_SESSION['id_user'];
          $id_prod = $_POST['id_prod'];
          $SQLREM = "DELETE FROM `carrito` WHERE id_user='$id_user' and id_producto='$id_prod';";
          if (mysqli_query($conn, $SQLREM)) {
            echo '<script> alert("Ok"); window.location="/CBA/WAUW/cart.php"</script>';
          } else {
            echo '<script> alert("Error"); window.location="/CBA/WAUW/cart.php"</script>';
          };
        }

The connection to the database works fine; as I said before, it deletes everything but the first item added.

I would be very grateful for any help.

 

Edited August 1, 2021 by dennisg001

[Barand]

I would check that the query being executed is the one I think is being executed

if ($_POST['btn-remove']) {
	  $id_user=$_SESSION['id_user'];
      $id_prod = $_POST['id_prod'];
      $SQLREM = "DELETE FROM `carrito` WHERE id_user='$id_user' and id_producto='$id_prod';";

          echo $SQLREM;
          exit;
}

 

[dennisg001]

I tried that, and I realized that it seems that for that item (first added) the button does not work, it does not send the request for that item.... But I dont understand why, it works for the other items.

[mac_gyver]

you probably have some broken markup on the form page (nested forms as an example.) the quickest way to get help would be to post all the code for that page.