PHP實現HTTP斷點續傳的方法

          本文實例講述了PHP實現HTTP斷點續傳的方法。分享給大家供大家參考。具體實現方法如下：

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 <?php /** * PHP-HTTP斷點續傳實現 * @param string $path: 文件所在路徑 * @param string $file: 文件名 * @return void */ function download($path,$file) { $real = $path.'/'.$file; if(!file_exists($real)) { return false; } $size = filesize($real); $size2 = $size-1; $range = 0; if(isset($_SERVER['HTTP_RANGE'])) { header('HTTP /1.1 206 Partial Content'); $range = str_replace('=','-',$_SERVER['HTTP_RANGE']); $range = explode('-',$range); $range = trim($range[1]); header('Content-Length:'.$size); header('Content-Range: bytes '.$range.'-'.$size2.'/'.$size); } else { header('Content-Length:'.$size); header('Content-Range: bytes 0-'.$size2.'/'.$size); } header('Accenpt-Ranges: bytes'); header('application/octet-stream'); header("Cache-control: public"); header("Pragma: public"); //解決在IE中下載時中文亂碼問題 $ua = $_SERVER['HTTP_USER_AGENT']; if(preg_match('/MSIE/',$ua)) { $ie_filename = str_replace('+','%20',urlencode($file)); header('Content-Dispositon:attachment; filename='.$ie_filename); } else { header('Content-Dispositon:attachment; filename='.$file); } $fp = fopen($real,'rb+'); fseek($fp,$range); while(!feof($fp)) { set_time_limit(0); print(fread($fp,1024)); flush(); ob_flush(); } fclose($fp); }

希望本文所述對大家的php程序設計有所幫助。