Selecting unique data from table

I've been searching for solution like this 2 - 3 days. I've tried array_unique(), mysql_fetch_assoc() none of them worked. It seems this functions only works with single array. But I've found a solution. Was to easy. All I had to do is change the way it selects from database using SELECT DISTINCT.

You can see examples from w3 schools by clicking here.

So now I can select unique data from table.

Today's Lesson is taught. If something wont work try to go ANOTHER WAY. 

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