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<?php

include "sqlconnect.php";

session_start();

$id=$_GET['id'];

$id1 = $conn->real_escape_string($id);

if (isset($_GET['qty'])) {

$qt=intval($_GET['qty']);

$qt = $conn->real_escape_string($qt);

}

else {

$qt=1;

}

if (isset($_GET['up'])) {

$up=1;

}

else {

$up=0;

}

if (isset($_SESSION['login'])) {

$result=$conn->query("SELECT * FROM Cart WHERE u_id='".$_SESSION['u_id']."' AND p_id='".$id."'");

if (mysqli_num_rows($result)>0) {

while($row = $result->fetch_assoc()) {

if ($up==0) {

$conn->query("UPDATE Cart SET qty=".strval($row['qty']+$qt)." WHERE u_id='".$_SESSION['u_id']."' AND p_id='".$id."'");

}

else {

$conn->query("UPDATE Cart SET qty=".strval($qt)." WHERE u_id='".$_SESSION['u_id']."' AND p_id='".$id."'");

}

}

echo "Success";

}

else {

$conn->query("INSERT INTO Cart (u_id,p_id,qty) VALUES (".$_SESSION['u_id'].",".$id.",".strval($qt).")");

echo "Success";

}

}

elseif (isset($_SESSION['t_id'])) {

$result=$conn->query("SELECT * FROM Tcart WHERE t_id='".$_SESSION['t_id']."' AND p_id='".$id."'");

if (mysqli_num_rows($result)>0) {

while($row = $result->fetch_assoc()) {

if ($up==0) {

$conn->query("UPDATE Tcart SET qty=".strval($row['qty']+$qt)." WHERE t_id='".$_SESSION['t_id']."' AND p_id='".$id."'");

}

else {

$conn->query("UPDATE Tcart SET qty=".strval($qt)." WHERE t_id='".$_SESSION['t_id']."' AND p_id='".$id."'");

}

}

echo "Success";

}

else {

$conn->query("INSERT INTO Tcart (t_id,p_id,qty) VALUES ('".$_SESSION['t_id']."',".$id.",".strval($qt).")");

echo "Success";

}

}

$conn->close();

?>