dongxi4335
2015-07-26 10:14 阅读 25
已采纳

如何获得大文件大小没有在PHP中使用高io?

I have some huge files, for example 3-9GB large files. But my problem whe i use

$size = filesize($file);

than I got really huge io ussage. It almost kill my apache server. Is there any other method for this?

private function pieces ( $handle, $piece_length, $last = true ) {
        static $piece, $length;
        if ( empty( $length ) )
            $length = $piece_length;
        $pieces = null;
        while ( ! feof( $handle ) ) {
            if ( ( $length = strlen( $piece .= fread( $handle, $length ) ) ) == $piece_length )
                $pieces .= self::pack( $piece );
            elseif ( ( $length = $piece_length - $length ) < 0 )
                return self::set_error( new Exception( 'Invalid piece length!' ) );
                        sleep(1);
        }
        fclose( $handle );
        return $pieces . ( $last && $piece ? self::pack( $piece ) : null);
    }

This is my code that tries to get the file size and make pieces hashs... I actually have a file sharing website and I whould like to generate torrent files for uploaded files, but when I generate the torrent this function eats all my HDD. (I whould like to use torrent, becouse if I download with my browser that can be iterrupted. But If I use torrent, than I can continue my downloading...)

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