Tickets :: Comment on [#5913] Lower memory usage while downloading files

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Comment	> Hi Chuck, > > > > I posted my code in the initial ticket, but just in case you can't > see it for some reason, here it is again (slightly modified to make > it easier to read/use). > > All you'd basically do is call the second function with the filename, > and the file should be send in bits to the browser. > > > > Function ReadFileChunked ($FileName) { > > $chunksize = (102400); // how many bytes per chunk > > $buffer = ''; > > $handle = fopen($FileName, 'rb'); > > if ($handle === false) { return false; } > > while (!feof($handle)) { > > $buffer = fread($handle, $chunksize); > > print $buffer; > > } > > return fclose($handle); > > } > > > > Function SendFileToBrowser ($FileName) { > > Header("Content-Type: application/force-download;"); > > Header("Content-Disposition: attachment; > filename=\"".$FileName."\""); > > Header("Content-Length: ".FileSize($FileName)); > > ReadFileChunked($FileName); > > Exit; > > } > > > >> Btw, you didn't post the code you mentioned yet, but is it really > >> necessary to use chunked reads, or will readfile > >> (http://www.php.net/readfile) or fpassthru do the right thing? In a > >> way fpassthru would be ideal because we can return a stream from the > >> VFS library in some backends, or fake it with a local file. > > > > Did a bit of reading up on fpassthru, and you might want to look at > the first comment on this page: > http://au.php.net/manual/en/function.fpassthru.php. > > There's also various other comments on memory usage downloading files > on that page. > > > > Cheers! Olger.
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