Using PHP to implement file upload support breakpoints

Using PHP to implement file download support breakpoints
File download with PHP, with support for the next breakpoint form

            Ob_start ();            $size = FileSize ($file _dir. $file _name);            Enter the file label Header ("Content-type:application/octet-stream");                        Header ("Cache-control:must-revalidate, Post-check=0, pre-check=0"); Header ("Content-length:".)                        $size);            $encoded _filename = UrlEncode ($down _name);            $encoded _filename = str_replace ("+", "%20", $encoded _filename);            $ua = $_server["Http_user_agent"]; When processing the download file name if (Preg_match ("/msie/", $ua)) {header (' content-disposition:attachment; filenam E= "'. $encoded _filename.            '"'); } else if (Preg_match ("/firefox/", $ua)) {header (' content-disposition:attachment; filename*= ' utf8\ ' \ '). $down _name.            '"'); } else {header (' content-disposition:attachment; filename= '. $down _name.            '"'); } $fp = fopen ($file _dir. $file _name, "R"); Open File if(Isset ($_server[' Http_range ') && ($_server[' http_range ']! = ") && preg_match ("/^bytes= ([0-9]+)-/i "                                , $_server[' Http_range ', $match) && ($match [1] < $size)) {$range = $match [1];                Fseek ($fp, $range);                Header ("http/1.1 206 Partial Content"); Header ("Date:".) Gmdate ("D, D M Y h:i:s").                "GMT"); Header ("last-modified:".) Gmdate ("D, D M Y h:i:s", Filemtime ($file _dir. $file _name)).                "GMT");                Header ("Accept-ranges:bytes"); $rangesize = ($size-$range) > 0?                ($size-$range): 0; Header ("Content-length:".)                $rangesize); Header ("Content-range:bytes". $range. '-' . ($size-1). "/" .                $size); Header ("Connection:close".                "\ n"); Header ("Connection:close". "            "); } else {header ("Content-length:". (string)               ($size)); Header ("Accept-ranges:bytes");                $range = 0; Header ("Content-range:bytes". $range. '-' . ($size-1). "/" .            $size);            } fpassthru ($FP);            Ob_end_flush ();            Fclose ($FP); Exit

This will allow the breakpoint to be downloaded. Want to use PHP to achieve the download of friends useful

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