managing files

[Anon]

Hi,

I am making a counter. So I need to write and read from file in oder to change the current number of visitors. I tryed to
do like this:

$inputString = "some string";
$fileHandler = fopen("counter.txt","w");
fwrite ($fileHandler, $inputString);
fclose ($fileHandler);
But it doesn't work. Something is wrong.

The operating system is UNIX.

Thank You.

By the way, Merry Christmas 🙂!

[Anon]

If you use the 'w' mode on fopen, you can only write to the file, you can't read from it. Sounds like you want something like this.

<?php
$fp = fopen("counter.txt", "r+");
if($fp) {
$visitors = fread($fp, filesize("counter.txt"));
if(is_numeric($visitors))
$visitors++;
else
$visitors = 1;
rewind($fp);
fwrite($fp, $visitors);
fclose($fp);
print($visitors);
} else
die("Couldn't access the file");
?>

Aaron