I had the same problem, and tried the above solutions, but not solved it for me. As i think, that this topic is in the top of Google, many people might have the same problem, so i am posting a solution (SO, xx ADMIN, TAKE IN, THAT THIS IS IMPORTANT, AND DONT WARN ME AGAIN!) :
set UTF8 correctly inside your php file, after mysql_connect (or after mysql_select_db) command.
mysql_query("SET NAMES 'utf8'");
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