Ayuda con MySQL y PHP

[FaredCesar]

Pruebo el Codigo:

Código PHP:

$query = mysql_query("SELECT user, titulo FROM temas WHERE user IN (SELECT user2 FROM amigos WHERE user1 = 1)",$conecta);
while ($row = mysql_fetch_array($query)){
    print $row;
}
 

y me sale:
Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /home/******/public_html/probar.php on line 4