使用PHP SESSION变量存储MySQL查询结果[重复]

我希望在一个文件中执行查询,将其存储在会话变量中,并在另一个文件访问结果。

文件1.php:

//This is the file I have executed my sql statement in
//I have already done session_start(); and initialized $conn
$query = //my query. I know it is working because I have tested it elsewhere, so I 
         // don't believe it is the problem
$_SESSION['query2'] = mysqli_query($conn, $query)

文件2.php:

//This is the file I want to access my query results in.
//I have already done session_start(); and initialized $conn

$tempArray =  $_SESSION['query2'];

if (isset($tempArray)) {
    $row = mysqli_fetch_array($tempArray, MYSQL_NUM);
    if ($row == null) {
        echo "<h1> error </h1>"; //This line gets executed
    } else {
        echo "<h1> works! </h1>";
    }
} else {
    echo "<h1> array not set </h1>";
}

你知道我做错了什么吗?或者,有没有另一种方法来完成我在这里试图做的事情?