fopen how set file extension

[nanat]

hi anyone how can i set file extension with my fopen statement

if (!$sql) die();

$f = @fopen(updateItemCode, 'a+');
if ($f) {
@fputs($f, date("m.d.Y g:ia")." ".$_SERVER['REMOTE_ADDR']." ".$itemscode." ".$fulname."\n");
@fclose($f);
}

result:
updateItemCode.html?

[scriptmasterdel]

$f = @fopen('updateItemCode.html', 'a+');

[nanat]

ic.. im trying to put
$f = @fopen(updateItemCode.html, 'a+');

it doesnt work..

i forgot the double Quate tnx anyway :D