PHP/Perl filesize function not working on new server

Question

I have a problem with a function that doesn't work as expected since I have moved my site from a shared hosting to a VPS (both have the same Linux OS, php version 5.2.9 and Perl version 5.8.8).

When my script store a remote file into a local directory, I run a simple php script at regular intervals (5 seconds) using XMLHttpRequest, this php script execute a Perl script that return the current file size (bytes already downloaded).

Here is the php code:

<?php
if (isset($_GET['file'])) {
    clearstatcache();
    $file = $_GET['file'];
    exec("/usr/bin/perl /home/xxxxxx/public_html/cgi-bin/filesize.pl $file", $output);
    //print_r($output);
    if (!empty($output) || $output[0] != "") {
        $currentSize = $output[0];
        file_put_contents('progress.txt', $currentSize);
    } else {
        ...
        ...
    }
}
?>

Here is the Perl code

#!/usr/bin/perl
$filename = $ARGV[0];
$filepath = '/home/xxxxxx/public_html/tmp_dir/'.$filename.'.flv';
$filesize = -s $filepath;
print $filesize;

When I was running these scripts on the shared server, I had no problem and could see the download progress, but now, the file size is only printed when the remote file has been fully downloaded and I can't see the progress.

I think I need to change something in the php settings but I'm not sure and I don't know what needs to be changed.

OK, I'm sorry/stupid, the filesize() function works fine, thank you all guys.

Why do you call a Perl script to just get the filesize? PHP can do this fine for you, you don't need the exec there. — Konerak
– Konerak, Commented May 16, 2011 at 6:54
@ Mario - This is not an upload, I download the remote file using cURL. — Maxime
– Maxime, Commented May 16, 2011 at 7:01
I believe you need to show us the script downloading the file and also the script reading progress.txt. What is the output of print_r($output)? — AndersTornkvist
– AndersTornkvist, Commented May 16, 2011 at 7:38

Community · Accepted Answer · 2023-11-17 19:37:06Z

2

If you need the file size, you could also just call the filesize function from PHP, and avoid having to use perl altogether.

edited Nov 17, 2023 at 19:37

CommunityBot

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answered May 16, 2011 at 6:50

Sebastian Paaske Tørholm

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1 Comment

Maxime Over a year ago

I have already tested this function, it only print the size when the file is fully downloaded, so I cant' see the progress, but thanks any way...

AndersTornkvist · Accepted Answer · 2011-05-16 07:00:52Z

1

The problem is probably caused by a different file location. Are you positive that the file '/home/xxxxxx/public_html/tmp_dir/'.$filename.'.flv' exists? You could test it with:

if (-e '/home/xxxxxx/public_html/tmp_dir/'.$filename.'.flv')

Remember that you could use PHP filesize() instead:

<?php
if (isset($_GET['file'])) {
    clearstatcache();
    $file = $_GET['file'];
    if (file_exists("/home/xxxxxx/public_html/tmp_dir/$file.flv") {
        $currentSize = filesize("/home/xxxxxx/public_html/tmp_dir/$file.flv");
        file_put_contents('progress.txt', $currentSize);
    } else {
        ...
        ...
    }
}
?>

answered May 16, 2011 at 7:00

AndersTornkvist

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2 Comments

Maxime Over a year ago

Yes I'm sure that the file exists because when it's fully downloaded I convert it into a different format. I'm pretty sure that I have already tested filesize(), it only print the size when the file is fully downloaded, and this is not what I need to see the progress.

AndersTornkvist Over a year ago

@Maxime I'm sorry this wasn't the problem. I'll comment on your question, since I'll remove this answer.

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