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<?php

include("conexao.php");

$ignoreID = $_GET['ignoreID'];

$sql = mysql_query("SELECT * FROM Registro, Desafios WHERE Registro.user_facebook_id != '$ignoreID' AND Desafios.desafio_from != '$ignoreID' ORDER BY RAND() LIMIT 1");
$row = mysql_fetch_array($sql);
$name = $row['user_facebook_name'];

echo $name;