一个基础的基础问题,找不出问题,纠结
下面代码,下载下来的问题为什么大小只有0字节?
if( $attachment['attachment'] )
{
$file = 'uploads/resource/'.$attachment['attachment'];
if( file_exists( dirname($file) ) )
{
$fileName = basename( $file );
header("Content-type: application/force-download");
header("Content-type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: ".filesize( $file ));
header("Content-Disposition: attachment; filename=" . $fileName);
readfile( $file );
}
}
回复讨论(解决方案)
确认 $attachment['attachment'] 有值,且文件存在。
确认 $attachment['attachment'] 有值,且文件存在。
确定、肯定、以及一定,我在本地测试的。就吧知道为什么。。。
header('Content-length: '.filesize($file));
header('Content-length: '.filesize($file));
还是0字节。。。。。郁闷。。
程序没执行到第二个 if 。。。
if( file_exists( dirname($file) ) )
你判断的是目录是否存在,而不是文件是否存在,因此如果文件确实不存在,下载的内容就可能是空
if( file_exists( dirname($file) ) )
你判断的是目录是否存在,而不是文件是否存在,因此如果文件确实不存在,下载的内容就可能是空
如果改为:if( file_exists( $file) ),也不行。。。。
没有进入第二个if, 说明的你 uploads/resource/ 目录不存在,当然文件也不存在。
没有进入第二个if, 说明的你 uploads/resource/ 目录不存在,当然文件也不存在。
$file_dir = '/webfolder/hz/uploads/resource/';
$file_name = $attachment['attachment'];
$file = $file_dir . $file_name;
这样提示文件没找到,但是我直接打到浏览器又可以,比如$file='123.docx';
127.0.0.1/webfolder/hz/uploads/resource/123.docx 这样下载下来是没问题的。
我的PHP文件和保存文件的文件夹都在hz文件夹里。。
$file_dir = '/webfolder/hz/uploads/resource/';
这个是系统的根目录,不是网站的根目录,你两个概念搞混了
$file_dir = '/webfolder/hz/uploads/resource/';
这个是系统的根目录,不是网站的根目录,你两个概念搞混了
$file_dir = 'd:/cede/webfolder/hz/uploads/resource/'; 这样也不行呢
引用 10 楼 snmr_com 的回复:$file_dir = '/webfolder/hz/uploads/resource/';
这个是系统的根目录,不是网站的根目录,你两个概念搞混了
$file_dir = 'd:/cede/webfolder/hz/uploads/resource/'; 这样也不行呢
各种路径都试过了,就是吧不行,大侠们,求救!!!!!!!!!!!!!!!!
$file_dir = '/webfolder/hz/uploads/resource/';
$file_name = $attachment['attachment'];
$file = $file_dir . $file_name;
这样提示文件没找到,但是我直接打到浏览器又可以,比如$file='123.docx';
127.0.0.1/webfolder/hz/uploads/resource/123.docx 这样下载下来是没问题的。
echo $file;//试试看
$file_dir = '/webfolder/hz/uploads/resource/';
$file_name = $attachment['attachment'];
$file = $file_dir . $file_name;
这样提示文件没找到,但是我直接打到浏览器又可以,比如$file='123.docx';
127.0.0.1/webfolder/……
echo $file得到/webfolder/hz/uploads/resource/123.docx
127.0.0.1/webfolder/hz/uploads/resource/123.docx 这样下载下来是没问题的。
那么你的程序在哪里?(echo __FILE__; 看一下)
127.0.0.1/webfolder/hz/uploads/resource/123.docx 这样下载下来是没问题的。
那么你的程序在哪里?(echo __FILE__; 看一下)
echo __FILE__;得到D:\Code\webfolder\hz\public_attach_down.php,路径正确
程序
D:\Code\webfolder\hz\public_attach_down.php
也就是说文档为
D:/Code/webfolder/hz/uploads/resource/123.docx
其中 D:/Code 为网站的根
你先
$file = 'D:/Code/webfolder/hz/uploads/resource/123.docx';if( file_exists( $file ) ) { $fileName = basename( $file ); header("Content-type: application/force-download"); header("Content-type: application/octet-stream"); header("Accept-Ranges: bytes"); header("Accept-Length: ".filesize( $file )); header("Content-Disposition: attachment; filename=" . $fileName); readfile( $file );}
程序
D:\Code\webfolder\hz\public_attach_down.php
也就是说文档为
D:/Code/webfolder/hz/uploads/resource/123.docx
其中 D:/Code 为网站的根
你先PHP code?12345678910$file = 'D:/Code/webfolder/hz/uploads/re……
不行,没执行if里面的程序,难道是在iframe里不行?
干嘛是框架?
你单独写个文件测试一下不就可以了吗
干嘛是框架?
你单独写个文件测试一下不就可以了吗
单独文件也不行。。。
那就是你提供的路径信息不对!
你最好截个图
那就是你提供的路径信息不对!
你最好截个图
这是站点路径
D:/Code/ htdocs_33594_v6/hz/uploads/resource/123.docx
你怎么总是说是 webfolder 呢?
D:/Code/htdocs_33594_v6/hz/uploads/resource/123.docx
你怎么总是说是 webfolder 呢?
红色部分只是个例子,代码中我是写htdocs_33594_v6这个的
引用 23 楼 xuzuning 的回复:D:/Code/htdocs_33594_v6/hz/uploads/resource/123.docx
你怎么总是说是 webfolder 呢?
红色部分只是个例子,代码中我是写htdocs_33594_v6这个的
$file = 'D:/Code/htdocs_33594_v6/uploads/public/20130420071624_1761_上传_案.docx';
if( file_exists( $file ) ) {
$fileName = basename( $file );
header("Content-type: application/force-download");
header("Content-type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: ".filesize( $file ));
header("Content-Disposition: attachment; filename=" . $fileName);
readfile( $file );
}
这样在单独文件可以下载并正常,但是在iframe里就不行了,怪哉!!!!!
解决问题的过程是最有趣的。
解决问题的过程是最有趣的。
这个趣味也太折腾人了。。
撒打算打算的
撒打算打算的
header("Content-Transfer-Encoding: binary");

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