Hi!
I'm looking for a download counter written in PHP.
My problem is that I only can find counters that just redirect my files. So if someone clicks my link but cancels the download the counter is incremented although the file hasn't been downloaded.
So, I'm looking for a solution that is streaming the requested file and at the end (when the last byte has been transfered) the counter is incremented.
Is it possible to do that in PHP. If not, what language do I have to use. Are there counters that I could use?
Regards,
Markus
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by: ramses0Posted on 2003-01-02 at 11:38:07ID: 7657535
First and most important is readfile. Use this to start streaming the file to the user.
http://www.php.net/readfil
<?php
Header( "application/octet-stream"
Readfile( $file );
?>
Next is to look up the "set_time_limit" and some of the connection handling functions (possibly register_shutdown_function
http://www.php.net/manual/
...if the file is too large then normally PHP will probably kill the connection. I haven't tested the following, but it should probably work without much changes. You'll have to make sure you handle your IncrementDownloads and Decrement downloads.
<?php
Set_Time_Limit( 0 ); // don't drop connections
Register_Shutdown_Function
IncrementDownloads()
Header( "application/octet-stream"
Readfile( $file );
function bye(){
//this is run when the page ends
if( connection_aborted() ){
DecrementDownloads()
}
}
?>
You can even try tracking the number of current downloaders. (IncrementTryingToDownload
--Robert