我从其中一个网站获取此代码以进行文件下载。 是否实现了此代码,但它只能下载,但是当我尝试查看文件时,它会显示文件中的错误。 我确实下载了各种文件格式,如pdf,docx,doc,但它总是显示错误。 我已经存储了我的上传文件或在数据库中说文件。它不在目录中。 请告诉我一些关于此的想法。
错误是 -
警告:fopen(files / JAVAPROGRAMS.doc)[function.fopen]:无法打开流:否 这样的文件或目录 C:\ wamp \ www \ pages \ candidate \ download.php 在线 75 错误 - 无法打开文件。
mysql_connect('localhost','root','') or die(mysql_error());
//echo "connected";
mysql_select_db('talent') or die(mysql_error());
function output_file($file, $name, $mime_type='')
{
$size = filesize($file);
$name = rawurldecode($name);
$known_mime_types=array(
"htm" => "text/html",
"exe" => "application/octet-stream",
"zip" => "application/zip",
"doc" => "application/msword",
"jpg" => "image/jpg",
"php" => "text/plain",
"xls" => "application/vnd.ms-excel",
"ppt" => "application/vnd.ms-powerpoint",
"gif" => "image/gif",
"pdf" => "application/pdf",
"txt" => "text/plain",
"html"=> "text/html",
"png" => "image/png",
"jpeg"=> "image/jpg"
);
if($mime_type==''){
$file_extension = strtolower(substr(strrchr($file,"."),1));
if(array_key_exists($file_extension, $known_mime_types)){
$mime_type=$known_mime_types[$file_extension];
}
else
{
$mime_type="application/force-download";
};
};
//turn off output buffering to decrease cpu usage
@ob_end_clean();
// required for IE, otherwise Content-Disposition may be ignored
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="'.$name.'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');
// multipart-download and download resuming support
if(isset($_SERVER['HTTP_RANGE']))
{
list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
list($range) = explode(",",$range,2);
list($range, $range_end) = explode("-", $range);
$range=intval($range);
if(!$range_end)
{
$range_end=$size-1;
}
else
{
$range_end=intval($range_end);
}
$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
}
else
{
$new_length=$size;
header("Content-Length: ".$size);
}
/* Will output the file itself */
$chunksize = 1*(1024*1024); //you may want to change this
$bytes_send = 0;
if ($file = fopen($file, 'r'))
{
if(isset($_SERVER['HTTP_RANGE']))
fseek($file, $range);
while(!feof($file) && (!connection_aborted()) && ($bytes_send<$new_length))
{
$buffer = fread($file, $chunksize);
echo($buffer);
flush();
$bytes_send += strlen($buffer);
}
fclose($file);
} else
//If no permissiion
die(mysql_error());
//die
die();
}
//Set the time out
set_time_limit(0);
//path to the file
$file_path='files/'.$_REQUEST['filename'];
//Call the download function with file path,file name and file type
output_file($file_path, ''.$_REQUEST['filename'].'', 'text/plain');
答案 0 :(得分:0)
试试这个。只需提及正确的文件路径即可。希望它适合你。
ignore_user_abort(true);
set_time_limit(0); // disable the time limit for this script
$path = "/YOUR_FILE_PATH/"; // change the path to fit your websites document structure
$dl_file = preg_replace("([^\w\s\d\-_~,;:\[\]\(\].]|[\.]{2,})", '',$_GET['download_file']); // simple file name validation
$dl_file = filter_var($dl_file, FILTER_SANITIZE_URL); // Remove (more) invalid characters
$fullPath = $path.$dl_file;
if ($fd = fopen ($fullPath, "r")) {
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);
switch ($ext) {
case "pdf":
header("Content-type: application/pdf");
header("Content-Disposition: attachment; filename=\"".$path_parts["basename"]."\""); // use 'attachment' to force a file download
break;
// add more headers for other content types here
default;
header("Content-type: application/octet-stream");
header("Content-Disposition: filename=\"".$path_parts["basename"]."\"");
break;
}
header("Content-length: $fsize");
header("Cache-control: private"); //use this to open files directly
while(!feof($fd)) {
$buffer = fread($fd, 2048);
echo $buffer;
}
}
fclose ($fd);
exit;
答案 1 :(得分:-1)
试试这个
output_file($file_path, ''.$_REQUEST['filename'].'', '');