Unable to upload web page

I am trying to upload a file from a web page. I use CGI to query for all of the input fields but "my $upload_filehandle = $query->upload("fileInput");" is always empty even when "my $file = $query->param("fileInput");" has properly fetched the file name from the same field. Here is the code:

use CGI;

$CGI::POST_MAX = 1024 * 5000;
my $query = CGI->new;
my $url = $query->param("urlInput");开发者_开发问答
my $file = $query->param("fileInput");
my $upload_filehandle = $query->upload("fileInput");
my $text = $query->param("textInput");
my $k = $query->param("kInput");

Any advice is appreciated.

Regards.

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I will repost my comment, as an answer:

• make sure your HTML form contains the enctype attribute, and that it's set to enctype="multipart/form-data"