الخطأ الدي يظهر : Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in D:\AppServ\www\testforeach\mune.php on line 8 الكود في المحرر: function print_books($sql = ''){ $res = mysql_query($sql); $i=0; while ($book = mysql_fetch_assoc($res) ) { ?> Author: "; }