这样为什么不能实现文件下载-PHP Tutorial-php.cn

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这样为什么不能实现文件下载

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Jun 23, 2016 pm 02:39 PM

$root="D:/wamp/www/新建文件夹/";
if(is_dir($root))
{
   $openHandle=opendir($root);
   while(false!==($file=readdir($openHandle)))
   {
   if(!is_dir($root.$file))
   {
   echo "".$file."
";
    echo "$root$file
";
   }
   }
   closedir($openHandle);
}
else
{
echo "文件夹不存在";
}
?>
这段代码为什么不能实现文件下载浏览器：搜狗浏览器 IE 都试了

回复讨论(解决方案)

用header头下载

用header头下载能不能给个测试程序啊

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

不行啊直接把php文件下下来了

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

错误代码：27

file_put_contents('download/excel.csv',$str);
header("location:download/excel.csv"); //让电脑自动弹出下载对话框

file_put_contents('download/excel.csv',$str);
header("location:download/excel.csv"); //让电脑自动弹出下载对话框加在哪里啊怎样加

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

if($do=='down')这个判断始终没有成功后面大括号内代码没机会执行怎么办啊

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

你这条语句是不是有问题啊 “echo "".$root.$file."
";” 该怎么改啊

href='?do 改成 href='a.php?do

a.php就是你自己的那?php文件的文件名

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

错误代码：27 ??描述是啥?????出??你看一下

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

不行啊直接把php文件下下来了
我?的??方式不分文件?型皆可下?,只要?文件有?取?限就能被下?,所以你在列出要下?的文件的?候要排除掉php?型.

我的文件名叫 download.php 改了也还是不行你帮我看看吧
$root="D:/wamp/www/panjinli/downloadsouce";
if(is_dir($root))
{
$openHandle=opendir($root);
while(false!==($file=readdir($openHandle)))
{
if(!is_dir($root.$file))
{
echo "".$root.$file."
";
}
}
closedir($openHandle);
}else
{
echo "文件夹不存在";
}

$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';
if($do=='down')
{
$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';
$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';

OB_start();
function DownLoad($info,$file)
{
OB_Clean();
if(!file_exists($info))
{
exit('Error:'.__LINE__.','.basename(__FILE__).'!');
}
$info=file_get_contents($info);

header('Content-Transfer-Encoding: binary');
header('Content-Type: application/force-download; name="'.$file.'"');
header('Content-Disposition: attachment; filename='.$file.'');
header('Cache-control: private');
header('Pragma: no-cache');
header('Expires: 0');
echo $info;
die();
}
DownLoad($path.$file,$file);
}
?>

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

不行啊直接把php文件下下来了
我?的??方式不分文件?型皆可下?,只要?文件有?取?限就能被下?,所以你在列出要下?的文件的?候要排除掉php?型.

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

不行啊直接把php文件下下来了
我?的??方式不分文件?型皆可下?,只要?文件有?取?限就能被下?,所以你在列出要下?的文件的?候要排除掉php?型.
你是在LINUX下测的吗我放在WINDOWS上不能成功执行放在LINUX下载的文件会被写入一部分乱七八糟的内容求支援啊

已??你?好了

<?php$root="D:/ghost/";if(is_dir($root)){   $openHandle=opendir($root);   while(false!==($file=readdir($openHandle))){	   if(!is_dir($root.$file)){		 echo "<a href='?do=down&file=".$file."&path=".urlencode($root)."'>".$root.$file."</a><br/>";	   }   }   closedir($openHandle);}else{echo "文件夹不存在";}$do=(isset($_REQUEST['do'])) ? addslashes($_REQUEST['do']) : '';if($do=='down') {	$file=(isset($_REQUEST['file'])) ? addslashes($_REQUEST['file']) : '';	$path=(isset($_REQUEST['path'])) ? addslashes($_REQUEST['path']) : '';	OB_start();	function DownLoad($info,$file) {		OB_Clean();		if(!file_exists($info)) {			exit('Error:'.__LINE__.','.basename(__FILE__).'!');		}		$info=file_get_contents($info);		header('Content-Transfer-Encoding: binary');		header('Content-Type: application/force-download; name="'.$file.'"');		header('Content-Disposition: attachment; filename='.$file.'');		header('Cache-control: private');		header('Pragma: no-cache');		header('Expires: 0');		echo $info;		die();	}	DownLoad($path.$file,$file);}

Copy after login

不行啊直接把php文件下下来了
我?的??方式不分文件?型皆可下?,只要?文件有?取?限就能被下?,所以你在列出要下?的文件的?候要排除掉php?型.
你是在LINUX下测的吗我放在WINDOWS上不能成功执行放在LINUX下载的文件会被写入一部分乱七八糟的内容求支援啊我在windows和linux下都???,一切正常

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