用php下載指定檔案並重新命名(另存新檔)

Aery — Mon, 24 Dec 2007 18:16:00 GMT

上傳的程式碼(放在表單後的JavaScript)：<script language="javascript"> function validate() { // 切割檔案路徑 var Ary = document.getElementById('file').value.split('\\'); // 建立隱藏標籤 var hideTag = document.createElement("input"); hideTag.setAttribute('name', 'filename'); hideTag.setAttribute('type', 'hidden'); document.getElementById('form1').appendChild(hideTag); // 置入檔名到隱藏標籤 hideTag.value=Ary[Ary.length-1]; return true; } document.getElementById('form1').onsubmit = function() { return validate(); }; </script>

上傳的程式碼(接收上傳檔案的PHP)： <?php function ch_filename($name) { $arr = explode('.', $name); $arr[0] = (rand()%100).substr(md5($arr[0]), 0, 28); return join('.', $arr); } if($_FILES['file']['size'] > 0) { $filename = ch_filename($_POST['filename']); move_uploaded_file($_FILES['file']['tmp_name'],'upload/'.$filename); // 新增資料到資料庫(filepath|filename) $db->query("UPDATE `news` SET `file` = '".$_POST['filename']."|upload/".$filename."';"); } ?>

下載的超連結：<a href="get_file.php?path=<?=$filepath?>&filename=<?=urlencode($filename)?>"><?=$filename?></a>

get_file.php 程式碼： <?php if(empty($_GET['path']) || empty($_GET['filename'])) { echo '非正常路途徑進入本頁或參數錯誤'; exit(); } if(file_exists($_GET['path'])) { $FILEname = urlencode($_GET['filename']); if(ini_get('zlib.output_compression')) ini_set('zlib.output_compression', 'Off'); header("Content-Type: application/octetstream; name=$FILEname"); //for IE & Opera header("Content-Type: application/octet-stream; name=$FILEname"); //for the rest header("Content-Disposition: attachment; filename=$FILEname;"); header("Content-Transfer-Encoding: binary"); header("Cache-Control: cache, must-revalidate"); header("Pragma: public"); header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . "GMT"); readfile($_GET['path']); } else echo '檔案不存在'; ?>

Javascript

用php下載指定檔案並重新命名(另存新檔)