From: "Hartley, Matt" <[EMAIL PROTECTED]>
> I am trying to have a counter in a file. With what I have below I get in
> the $counterfile
>
> 0 + 01 = 01
> 01 + 01 = 012
> 012 + 01 = 01213
>
> [snip]
>
> /* Add "1" to the counter */
> $counter = ($counter + '01');
You're "adding" a string. That doesn't make much sense. Just use $counter++;
or $counter = $counter + 1;
> /* Verify counter file is writable */
> if (is_writable($counterfile)); /* { */
> if (!$handle = fopen($counterfile, 'a')) {
> print "Cannot open file ($counterfile)";
> exit;
> }
> /* Write to our counter file. */
> if (!fwrite($handle, $counter)) {
> print "Cannot write to file ($counterfile)";
> exit;
> }
> fclose($handle);
>
> [/snip]
> How do I overwrite the existing value with my new value instead of it
adding
> on after the past values?
Open the file in "w" (write) mode instead of "a" (append) mode. This will
clear the file and you can write your new value to it.
Note that if two peope hit your site at the same time, you'll have issues
here because they'll both try to open and read the file. You could end up
missing hits.
Why not approach it this way, which I've seen mentioned on here. Instead of
keeping an actual number in the file, just write a character to the file.
You can then use filesize() to determine how many "hits" are in the file.
<?php
$fp = fopen('counter.txt','a');
fwrite($fp,'1');
fclose($fp);
echo 'This page viewed ' . filesize('counter.txt') . ' times.';
?>
> this counter decides what line to display in a sequence from a separate
file
> what command can I use to tell it when $counter is @ the last line in my
> "tips" file to reset to zero
I don't understand what you're asking here.
---John Holmes...
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