Encode/Decode a picture url?

Hello,

I store the instantgame.playerPhotoURL to Mysqli Database trhough php.

I can not show it in a sprite ,also when i try to show it directly from browser i get 404 error.

I have to encode the image url when i store it at Database and decode it when i receive it from database or i can do it using construct directly?

What are the steps?

This is the url i save to my leaderboard

platform-lookaside.fbsbx.com/platform/instantgames/profile_pic.jpg