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Posted by Good Man on 09/10/07 15:04
howa <howachen@gmail.com> wrote in news:1189433262.872289.319540@
19g2000hsx.googlegroups.com:
> Target: To fetch a file using PHP and send to user
>
> Method 1:
>
> echo file_get_contents( $file_path );
>
> Method 2:
>
> readfile( $file_path );
>
>
> Which one is better?
>
I send files to users via PHP all the time, as my documents are stored
above the "www" directory. I use a modification of "readfile", found on
the manual page by chrisputnam at gmail dot com... had to use this
function because "readfile" has a knack for ending the file streaming
early on large files:
function readfile_chunked($filename,$retbytes=true) {
$chunksize = 1*(1024*1024); // how many bytes per chunk
$buffer = '';
$cnt =0;
// $handle = fopen($filename, 'rb');
$handle = fopen($filename, 'rb');
if ($handle === false) {
return false;
}
while (!feof($handle)) {
$buffer = fread($handle, $chunksize);
echo $buffer;
ob_flush();
flush();
if ($retbytes) {
$cnt += strlen($buffer);
}
}
$status = fclose($handle);
if ($retbytes && $status) {
return $cnt; // return num. bytes delivered like readfile() does.
}
return $status;
}
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