depends on what u got going.
To Display Comments
So now, For every user.
If they are a editor, you need to set $editor to 1:
You also need a mysql query, to get text that you want to be able to be edited from your mysql database. Set that text to:
$edittext
Also you then need to create a "editorcommentsubmit.php" that when you Submit a form it goes to that page, and updates the database.
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Its not easy, lol.
Good Luck With It! ..