Write to file

Hi,
i want to write to strings to a file, but every string in a new line. I wrote:

$fd = fopen("any_file.txt","w+");
$a = "Any_String";
$b = "Any_String";
fwrite ($fd, $a);
fwrite ($fd, $b);
fclose ($fd);

But it does not work.
I know you can help me - gerus

gerus - that should work fine. what is the error message you're getting? does a file end up on disk? does it have anything in it?

No, you did not understand me. It workes, of course. But i want every string in the file on a new line like this:
1 Any_string
2 Any_string
3
4

and not like this

1 Any_string Any_string
2
3

if you want each entry on a new line you must add the new line character "\n":

<?
$fd = fopen("any_file.txt","w+");
$a = "Any_String\n";
$b = "Any_String\n";
fwrite ($fd, $a);
fwrite ($fd, $b);
fclose ($fd);
?>

<?
$fd = fopen("any_file.txt","w+");
$a = "Any_String";
$b = "Any_String";
$d = "Any_String";
fwrite ($fd, $a."\n".$b."\n".$d);

fclose ($fd);
?>