PHP无法从HTML表单上传文件

Question

This is how I handle my form:

        # Create the message
        # ----------------------------------------------------------------
        $name = $_POST['name'];
        $email = $_POST['email'];
        $title = $_POST['title'];
        $course = $_POST['course'];
        $file = $_POST['file'];

        $message  = "Name: ".$name."
";
        $message .= "Email: ".$email."

";
        $message .= "Title of Article: ".$title."
";
        $message .= "Program: ".$course."

";
        $message .= "Additional Info: ".$info;

        # Upload temporary files
        # ----------------------------------------------------------------
        $uploaddir = '/home/public/uploads/';
        $uploadfile = $uploaddir . basename($_FILES['file']['name']);
        if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile) == false) {
            echo 'Could not move file';
            exit;
        }

        if ($_FILES['file']['type'] != "application/pdf") {
            echo 'Not a pdf file';
            unlink($uploadfile);
            exit;
        }

The end product is hopefully sending an email with the file as an attachment. Right now I'm failing and getting the "Could not move file" message I built in. Is there an obvious reason why? $file is what I get from a file dialog in HTML (input type="file")

Answer 1

Two things:
1. Is the form set to:

<form method="POST" enctype="multipart/form-data" action="INSERT ACTION">

2. Is the folder your posting the file to, is it set to 777?