saving html tags and reproducing properly

I am using mysql db and PHP code.

I store value like this in db <u><strike>&开发者_如何学Pythonlt;i><b>Opinion</b></i></strike></u>

that is with some editor. so how do I display it so that, it takes all the tags given to it?

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You should always use htmlspecialchars() function when filling form values.
As well as textarea content.
It will preserve all your tags as is.

$text = htmlspecialchars($text);
echo "<textarea>$text</textarea>";