So you want to have a textarea and whatever it typed into that to be displayed in a drop down box?
You could do something like this assuming each catagory is displayed in the textarea line by line:
PHP Code:
//Data from textarea
$data = $_POST['textarea'];
//Seperate out the data
$data = explode("n\", $data);
//Start the option field
echo '<select>';
//Put each line into the option of a drop down menu
foreach($data as $d){
echo '<option>'.$d.'</option>';
}
//end the option field
echo '</select>';
Is that what you mean?