curl, how to download files with special characters? - php

Question

my downloading function:
public static function download($a)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $a);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FAILONERROR, 1);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_TIMEOUT, 15);
$a= curl_exec($curl);
curl_close($curl);
return $a;
}
and given this link:
http://example.com/x.txt
is works well. But with a special case:
http://example.com/fájl/név/with ékezetek.txt
then its a "400 - bad request." curl_errno is 22 then. How to download it then? urlencode is not OK since it encode the hostname itself.
EDIT: those url are given "outside", I have no influence of it!

Answer 1

cURL and file_get_contents does not work with URL containing special character (accented letters, quotes, ...)
Solution:
$data = file_get_contents(urlEncode('http://www.test.com/file/file_planta_1ª.jpg'));
function urlEncode($url)
{
$parts = parse_url($url);
$parts['path'] = implode('/', array_map('urlencode', explode('/', $parts['path'])));
return $parts['scheme'].'://'.$parts['host'].$parts['path'];
}

Answer 2

try to make a
base64_encode
of the data, and a
base64_decode
to get original data

Answer 3

Improved Andrey's answer.
One will get a better result using rawurlencode() function.
function fileUrlEncode($url)
{
$parts = parse_url($url);
$parts['path'] = implode('/', array_map('rawurlencode', explode('/', $parts['path'])));
return $parts['scheme'].'://'.$parts['host'].$parts['path'];
}