问题描述
我想下载一个远程文件,并将其放在我的服务器目录中,其原始名称相同。我尝试使用 file_get_contents($ url)
。
问题是文件名不包含在 $ url
,就像: www.domain.com?download = 1726
。这个URL给我,例如: myfile.exe
,所以我想用 file_put_contents('mydir / myfile.exe');
。
我如何检索文件名?我在下载之前尝试了 get_headers()
,但我只有文件大小,修改日期和其他信息,缺少文件名。
我以另一种方式解决了问题。我发现如果url标头中没有 content-disposition ,那么文件名就存在于URL中。所以,这段代码可以处理任何类型的URL(不需要cURL):
$ url =http:// www。 example.com/download.php?id=123\" ;
// $ url =http://www.example.com/myfile.exe?par1=xxx;
$ content = get_headers($ url,1);
$ content = array_change_key_case($ content,CASE_LOWER);
//通过标题
if($ content ['content-disposition']){
$ tmp_name = explode('=',$ content ['content-disposition' ]);
if($ tmp_name [1])$ realfilename = trim($ tmp_name [1],'; \'');
} else
// by URL Basename
{
$ stripped_url = preg_replace('/ \\。* /','',$ url);
$ realfilename = basename($ stripped_url);
}
有用!:)
I want to download a remote file and put it in my server directory with the same name the original has. I tried to use file_get_contents($url)
.
Problem is that the filename isn't included in $url
, it is like: www.domain.com?download=1726
. This URL give me, e.g.: myfile.exe
, so I want to use file_put_contents('mydir/myfile.exe');
.
How could I retrieve the filename? I tried get_headers()
before downloading, but I only have file size, modification date and other information, the filename is missing.
I solved it another way. I found that if there is no content-disposition in url headers, then filename exists in URL. So, this code works with any kind of URL's (no cURL needed):
$url = "http://www.example.com/download.php?id=123";
// $url = "http://www.example.com/myfile.exe?par1=xxx";
$content = get_headers($url,1);
$content = array_change_key_case($content, CASE_LOWER);
// by header
if ($content['content-disposition']) {
$tmp_name = explode('=', $content['content-disposition']);
if ($tmp_name[1]) $realfilename = trim($tmp_name[1],'";\'');
} else
// by URL Basename
{
$stripped_url = preg_replace('/\\?.*/', '', $url);
$realfilename = basename($stripped_url);
}
It works! :)
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