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Home Backend Development PHP Tutorial php文件下载乱码问题

php文件下载乱码问题

Jun 23, 2016 pm 02:14 PM

我想添加一个文件上传下载功能,由于文件可能较大,所以思路是在数据库中存储文件在服务器上的路径,下载时根据路径读取文件。最开始在上传时页面文件列表显示的中文文件名为乱码,添加了

mysql_query("SET NAMES 'utf8'");
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之后解决。后来在下载时存储的文件名为乱码,同样添加这个code解决。但是下载的文件里面的中文就成乱码了。我用txt文本测试,英文没问题,UTF-8格式的文本也没问题,默认的ANSI就成乱码,当然上传word文件也是乱码。大家帮忙看看应该怎么改,不知道是传到服务器就是乱码,还是下载下来格式没转换,我的数据库是UTF-8编码的,母版页也是UTF-8编码。

curUser;	$logger = new CategoryLogger('log_definition');	if($notice!="auto")notice($notice);	$id=$mineid;//要下载文件的ID  	if(!isset($id) or $id=="") die("error:id none");  //定位记录,读出 	$conn=mysql_connect('10.4.16.102','root','abc') or die('Unable to connect .');       mysql_select_db('greenmine',$conn) or die(mysql_error($conn));	mysql_query("SET NAMES 'utf8'");    $sql=  "select * from file where id=$id";  	$result=  mysql_query($sql);  	if(!$result) die("error:mysql query");  	$num=mysql_num_rows($result);  	if($num<1) die("error:no this recorder");  	$data=mysql_result($result,0,"file_data");  //文件存储路径	$type=mysql_result($result,0,"file_type");  	$name=mysql_result($result,0,"file_name"); 	mysql_close($conn);  	$file_name=$name;	$file_dir=$data;	if   (!file_exists($file_dir))   {   //检查文件是否存在   			 echo   "文件找不到";    			exit;      	}   else   {  	$filePath = $file_dir;//此处给出你下载的文件在服务器的什么地方       $fileName = $file_name;       //此处给出你下载的文件名       $file = fopen($filePath, "r"); //   打开文件Header("Content-type:application/octet-stream ");Header("Accept-Ranges:bytes ");Header("Accept-Length:   " . filesize($filePath));Header("Content-Disposition:   attachment;   filename= " . $fileName);              //   输出文件内容       echo fread($file, filesize($filePath));       fclose($file);       exit;     }}?>
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回复讨论(解决方案)

是文件名乱码,还是文件内容乱码?
你的库中只保存文件名,而文件是独立保存的。不是这样吗
打开文件要 $file = fopen($filePath, "r b");

供下载的文件名
Header("Content-Disposition:   attachment;   filename= " .  $fileName);
要与用户所用操作系统配套

是文件名乱码,还是文件内容乱码?
你的库中只保存文件名,而文件是独立保存的。不是这样吗
打开文件要 $file = fopen($filePath, "rb");

供下载的文件名
Header("Content-Disposition:   attachment;   filename= " . $fileName);
要与用户所用操作系统配套
      …… 文件名是对的,里面的内容是乱码。文件单独保存在服务器上。改成rb也不好使

只要你没有对文件内容进行操作,那么只能说文件本身就是乱码的

只要你没有对文件内容进行操作,那么只能说文件本身就是乱码的 啊!问题解决了,把这个php页面的编码格式UTF-8+bom改成UTF-8就行了,同样谢谢斑竹!

请问楼主,上传doc或docx这种word文件,下载后打开文件内容是否正常显示?

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