php - 给出代码中的错误应该是什么我无法弄清楚？

Question

$upload = new uploadObject('songs');  

$upload->title = $data['upload_data']['title'];
$upload->description = $data['upload_data']['description'];
$upload->tags = $data['upload_data']['tags'];

注意：未定义的变量 $data

Answer 1

你需要$data在顶部定义像..

$data="";
// then your other code