Remote file size without downloading file

Question

Is there a way to get the size of a remote file http://my_url/my_file.txt without downloading the file?

Answer 1

I'm not sure, but couldn't you use the get_headers function for this?

$url     = 'http://example.com/dir/file.txt';
$headers = get_headers($url, true);

if ( isset($headers['Content-Length']) ) {
   $size = 'file size:' . $headers['Content-Length'];
}
else {
   $size = 'file size: unknown';
}

echo $size;