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set_value() usage
#1

Hi, 
I  use set_value() to recover form info on form_validation fail, but I also want to use set_value() in form to edit info, I want put info which I get from database in that form and then user will edit it. 
in here https://www.codeigniter.com/userguide3/h...elper.html it writes that set_value will look into $_POST variable. I set $_POST['title'] = "edit form" in my controller. but it does not show in view when I uset set_value('title');
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#2

Use the second parameter `$default` like `set_value('title', 'edit form')`.
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