会话值

Question

我使用$_SESSION[''];在用户登录后获取值。此数据来自users表。

然后我通过执行查询并在用户API = $ API

时为每个值分配var来尝试SELECT * FROM roster表

error_reporting(E_ALL);
    include ('database_connection.php');

        $DOCSIGNEDBYIP = $_SERVER['REMOTE_ADDR'];
        $API = $_SESSION['API'];
        $FirstName = $_SESSION['firstname'];
        $LastName = $_SESSION['lastname'];
        $Email = $_SESSION['email'];
        $ExecutionDate = date();

     $query = "SELECT * FROM roster WHERE API='$API'";
          $result = mysqli_query($dbc, $query);  
          $address = $result['address'];

database_connection.php

$dbc = @mysqli_connect(DATABASE_HOST, DATABASE_USER, DATABASE_PASSWORD,
 DATABASE_NAME);

我什么都没得到。没有错误。

Answer 1

您必须使用mysqli_fetch_array()或mysqli_fetch_assoc()或类似功能返回mysqli_query()查询中的值。见下文：

$query = "SELECT * FROM roster WHERE API='$API'";
$result = mysqli_fetch_array(mysqli_query($dbc, $query));
$address = $result['address'];