Salve è possible fare un join tra 2 tabelle in questo modo:
a me da errore:Codice PHP:
"SELECT IDUtente, visited_article.IDArticle as visited, magazine.IDarticle as codart, Line, Article FROM visited_article, magazine WHERE visited='$idart' AND codart=visited LIMIT 4"
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given