Просмотр поста

Спасибо помог.
$id = mysql_fetch_assoc(mysql_query("select * from `words` order by rand() LIMIT 1"));

if(mysql_num_rows(mysql_query("select * from `my_words` where `id_user` = '$user[id]' and `id_word` = '" . $id['id'] . "'")) == 0){