Question

这是我的主要代码

if (isset($_POST))
{
    include('connection.php');

    $query = "call pgetuseridfromemail('" . $_SESSION['email']. "')";
    $result = mysqli_query($conn, $query);
    $row = mysqli_fetch_assoc($result);
    $userid = $row['idusers'];

    $query = "SELECT * FROM USERS";
    $result = mysqli_query($conn, $query) or die("query no executed");
    while($row = mysqli_fetch_assoc($result))
    {
        echo $row['USERNAME'];
    }
}

这是我与数据库的连接

session_start();

$user = "root";
$pass = "";
$hostname = "localhost";
$database = "faana final";
//conection to database
$conn = mysqli_connect($hostname, $user, $pass, $database) or die(mysql_error());

这是我的商店程序

 BEGIN
      select idusers from users where email = email1;
 END

我无法执行查询，因为它回显query not executed

Answer 1

表名在MySql中区分大小写，取决于Operating System：

$query = "SELECT * FROM USERS";

select idusers from users where email = email1;

您可能会打印mysql错误，如下面的几行：

$result = mysqli_query($conn, $query1) or die(mysql_error()); //die("query no executed");

Answer 2

在代码行$query1中使用$query而不是$query = "SELECT * FROM USERS";，反之亦然。

PHP MySql查询无法执行

2 个答案: