how to obtain the download name from an url php coding - php

Question

ive been trying to get the name of files from a url, i found it simple with base name
until i came urls that has no sign of the true name, intil downloaded
here is an example of the links i found
here the true name is youtubedownloadersetup272.exe
http://qdrive.net/index.php/page-file_share-choice-download_file-id_file-223658-ce-0
as you can see it shows no name until download.
ive been searching a lot, i got desperated of finding nothing, ill apreciate if someone can point me the way thanks.
i sorry to bother again but i foun this link from download.com and i dont se the filename using curl
<?php
function getFilename($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_NOBODY, 1);
$data = curl_exec($ch);
echo $data;
preg_match("#filename=([^\n]+)#is", $data, $matches);
return $matches[1];
}
echo getFilename("http://software-files-l.cnet.com/s/software/11/88/39/66/YouTubeDownloaderSetup272.exe?e=1302969716&h=89b64b6e8e7485eab1e560bbdf68281d&lop=link&ptype=1901&ontid=2071&siteId=4&edId=3&spi=fdc220b131cda22d9d3f715684d064ca&pid=11883966&psid=10647340&fileName=YouTubeDownloaderSetup272.exe");
?>
it returns this with echo $data
HTTP/1.1 200 OK
Server: Apache
Accept-Ranges: bytes
Content-Disposition: attachment
Content-Type: application/download
Age: 866
Date: Sat, 16 Apr 2011 10:16:54 GMT
Last-Modified: Fri, 08 Apr 2011 18:04:41 GMT
Content-Length: 4700823
Connection: keep-alive
if i understood the scrip you gave me it wont work because it has no filename,
is there a way to get the name with out having to do regex or parsing the url (YouTubeDownloaderSetup272.exe?e.........), like the scrip you gave me ?

Answer 1

You need to use curl, or some other library to request the file and look at the headers of the response.
You'll be looking for a header like:
Content-Disposition: attachment; filename=???
Where the question marks are the name of the file.
(You will still have to download the file, or at least look like you are downloading the file.)

Answer 2

function getFilename($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_NOBODY, 1);
$data = curl_exec($ch);
preg_match("#filename=([^\n]+)#is", $data, $matches);
return $matches[1];
}
echo getFilename("http://qdrive.net/index.php/page-file_share-choice-download_file-id_file-223658-ce-0"); //YouTubeDownloaderSetup272.exe
For download.com...
function download_com($url){
$filename = explode("?", $url);
$filename = explode("/", $filename[0]);
$filename = end($filename);
return $filename;
}
echo download_com("http://software-files-l.cnet.com/s/software/11/88/39/66/YouTubeDownloaderSetup272.exe?e=1302969716&h=89b64b6e8e7485eab1e560bbdf68281d&lop=link&ptype=1901&ontid=2071&siteId=4&edId=3&spi=fdc220b131cda22d9d3f715684d064ca&pid=11883966&psid=10647340&fileName=YouTubeDownloaderSetup272.exe");