Basic fopen question

[deko]

I'm stuck on a very basic counter program. I have a file that looks like this:

4
5
7
8
2
9

I want to periodically increment the top line value by one, without affecting
any other line in the file.

$vct='counter.txt';
$fp=fopen($vct, 'r+'); //from what I read in the manual, r+ is the right
choice...
$oldct=fgets($fp); //get the first line
$newct = $oldct+1; //increment value
fwrite($fp, $newct); //write new value over old value
fclose($fp);

why doesn't this work????

[Garp]

"deko" <dj****@hotmail.com> wrote in message
news:Pi*******************@newssvr29.news.prodigy. com...

I'm stuck on a very basic counter program. I have a file that looks like this:
4
5
7
8
2
9

I want to periodically increment the top line value by one, without affecting any other line in the file.

$vct='counter.txt';
$fp=fopen($vct, 'r+'); //from what I read in the manual, r+ is the right
choice...
$oldct=fgets($fp); //get the first line
$newct = $oldct+1; //increment value
fwrite($fp, $newct); //write new value over old value
fclose($fp);

why doesn't this work????

That particular code doesn't work because fgets() is moving your file
pointer. Reset it to the top with fseek(). Good luck when you get that
number to 2 digits, though.

Or get a database. 8)

Garp