Question

我收到此错误：

错误：INSERT INTO order（username，productName，qty）VALUES（＆＃39; denieall.joe＆＃39;，＆＃39; Wrist Watch＆＃39;，＆＃39; 1＆＃39;）您的SQL语法有错误;查看与您的MySQL服务器版本相对应的手册，以获得正确的语法，使用附近的订单（用户名，产品名称，数量）VALUES（＆＃39; denieall.joe＆＃39;，＆＃39; Wrist Watch＆＃39; ;，＆＃39; 1＆＃39;在第1行

<?php
session_start();
include("includes/constants.php");
include("includes/functions.php");

    if (!isset($_SESSION['username']))
    {
        redirect_to_home();

    }

//conection and select database: 
    $conn = mysqli_connect(DB_SERVER,DB_USER,DB_PASS,DB_NAME) or die("Error !!!" ); 

    foreach ($_SESSION["cart_products"] as $cart_itm)
    {

        $sql = "INSERT INTO order (username, productName, qty) 
        VALUES ('{$_SESSION['username']}', '{$cart_itm['product_name']}', '{$cart_itm['product_qty']}')";

        if (mysqli_query($conn, $sql)) {
            echo "New record created successfully";
        } else {
            echo "Error: " . $sql . "<br>" . mysqli_error($conn);
        }

    }
        mysqli_close($conn);
?>

请帮我解决这个问题。

Answer 1

你应该使用order

的反引号

不

INSERT INTO order

但

INSERT INTO `order`

与任何其他保留字一样 http://dev.mysql.com/doc/refman/5.6/en/keywords.html

Answer 2

您只需将其与

一起使用即可

$name = $_SESSION['username'];
$product_name = $cart_itm['product_name'];
$product_qty = $cart_itm['product_qty'];

$sql = "INSERT INTO `order` (username, productName, qty) VALUES ('$name', '$product_name', '$product_qty')";

将Session变量插入到查询中时出错

2 个答案: