php - how to define variable from mysql output -

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I have the following variable that returns my URL as necessary. But before I echo in my HTML code I need to run str_replace () to change the character. 

  $ url = str_replace ("% 3A", ":", "nl2br ($ line ['url']).");

As it is "nl2br ($ line ['url'])." URL contains% 3A instead of colon, and due to some reason it is my link like 

  http://www.mydomain.com/http%3A//url.com

I'm not really sure what your question is, but it seems you want : 

  $ url = urldecode ($ row ['url']);

% 3A is a colon (:).


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