我有一个cURL脚本来下载文件，但下载的文件大小与服务器大小不同：
下载窗口弹出消息：
Document (389 bytes)
但该文件是MP3和给定的文档。
在我的电脑上，当我检查文件信息时，它会显示：
Kind: MP3 audio
Size: 389 bytes (4 KB on disk)
代码是
$url = strip_tags($_GET['path']);
//echo $url.'<br>';
$fileName = strip_tags($_GET['file']);
//echo $fileName;
set_time_limit(0);
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Content-Type: application/download");
header("Content-Disposition: filename=$fileName");
set_time_limit(0);
$fp = fopen (dirname(__FILE__) . '/localfile.tmp', 'w+');//This is the file where we save the information
$ch = curl_init(str_replace(" ","%20",$url.$fileName));//Here is the file we are downloading, replace spaces with %20
curl_setopt($ch, CURLOPT_TIMEOUT, 50);
curl_setopt($ch, CURLOPT_FILE, $fp); // write curl response to file
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch); // get curl response
curl_close($ch);
fclose($fp);
检查服务器上文件大小的命令行：
419036 Mar 24 2014 001.mp3
感谢您的帮助
这对我很有效。还要确保www用户有足够的权限在目录上写入。您为curl使用了错误的HTTP囤积器。这就是下载失败的原因。
<?php
$url = strip_tags($_GET['path']);
//echo $url.'<br>';
$fileName = strip_tags($_GET['file']);
//echo $fileName;
set_time_limit(0);
$fp = fopen (dirname(__FILE__) . '/localfile.tmp', 'w+');//This is the file where we save the information
$url = str_replace(" ","%20",$url.$fileName);
$ch = curl_init($url);//Here is the file we are downloading, replace spaces with %20
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Host www.alfirdaous.com',
'User-Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:42.0) Gecko/20100101 Firefox/42.0',
'Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Language en-US,en;q=0.5',
'Accept-Encoding gzip, deflate',
'Connection keep-alive',
));
curl_setopt($ch, CURLOPT_TIMEOUT, 50);
curl_setopt($ch, CURLOPT_FILE, $fp); // write curl response to file
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch); // get curl response
curl_close($ch);
fclose($fp);
?>