Mysqli SELECT *无效

Question

代码看起来很好，但它没有检索“GroupMembers”。帮助

<?php
        $ID = $db->real_escape_string(strip_tags(stripslashes($_GET["ID"])));
        $GetGroupByID = mysqli_fetch_object(mysqli_query($db, "SELECT * FROM Groups WHERE ID='$ID'"));

        $GetMembersTrunc = mysqli_query($db, "SELECT * FROM GroupMembers WHERE GroupID=$GetGroupByID->ID ORDER BY ID DESC LIMIT 0, 12") or die(mysqli_error());
?>

<?php while ($gMT = mysqli_fetch_object($GetMembersTrunc)): ?>
        ljlsdlfks
<?php endwhile; ?>

// shows no errors with "or die(mysqli_error());" and the text "ljlsdlfks" isn't appearing

// looks 100% fine to me

Answer 1

更改此信息：GroupID = $ GetGroupByID-＆gt; ID 对此：GroupID ='{$ GetGroupByID-＆gt; ID}'

Answer 2

尝试这样，看看它是否有效：

$ GetGroupByID = mysqli_fetch_object（mysqli_query（$ db，＆＃34; SELECT * FROM Groups WHERE ID = $ ID＆＃34;））;

Answer 3

您的$ ID是否为数字参数？如果是，请尝试此代码

devise_for :users 
devise_scope :user do
  scope '/admin' do
    get "/your_route" ...
  end
end