想要将同一产品同时使用不同的IP地址添加到购物车中

时间:2016-05-24 02:53:26

标签: php mysql function

我正在用PHP创建电子商务网站。我现在卡在购物车里。当不同IP地址的用户添加已由其他用户添加的产品时,该产品不会进入我的数据库的购物车表。对于。进出口。如果user1在数据库中添加了“Book 1”,那么user2无法在数据库中添加“Book1”,因为Book1已经由user1添加。所以我试图解决这个错误,但它没有得到解决。

//购物车功能:

function cart()
{
 if(isset($_GET['add_cart']))
{
 global $con;
 $ip = getIp();
 $cb_id = $_GET['add_cart'];
 $cart_query = "select * from cart where ip_add='$ip' AND cb_id='$cb_id'";
 $run_query = mysqli_query($con, $cart_query) or die(mysqli_error($con));


 if(mysqli_num_rows($run_query)>0)
{
 echo "<script>alert('You had already added this book in cart')</script>";
 echo "<script>window.open('index.php','_self')</script>";
}
 else
{
 $insert_cart="insert into cart (cb_id, ip_add) values ('$cb_id','$ip')";
 $run_insert= mysqli_query($con, $insert_cart) or die(mysql_error($con));
 echo "<script>alert('Your book is added in the cart')</script>";
 echo "<script>window.open('index.php','_self')</script>";
}
}
}

// IP功能:

function getIp() 
{
 $ip = $_SERVER['REMOTE_ADDR'];
 if (!empty($_SERVER['HTTP_CLIENT_IP'])) 
{
 $ip = $_SERVER['HTTP_CLIENT_IP'];
} 
 elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
{
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
}

return $ip;
}

//购物车表 cb_id(int 100) ip_add(varchar 255) 数量文字

0 个答案:

没有答案