Download a ZIP file using cURL - php

Question

I am trying to download a ZIP file using cURL, from a given URL.
I received an URL from a supplier where I should download a ZIP file. But everytime I try to download the ZIP file I get the page that says that I am not logged in.
The url where I should get the file from looks like this:
https://www.tyre24.com/nl/nl/user/login/userid/USERID/password/PASSWORD/page/L2V4cG9ydC9kb3dubG9hZC90L01nPT0vYy9NVFE9Lw==
Here you see that the USERID, and PASSWORD are variables that are filled in with the correct data. The strange thing is that if I enter the URL in my browser it seems to work, the zip file is getting downloaded.
But everytime I call that URL with cURL, I seem to get a incorrect login page. Could someone tell me what I am doing wrong?
It seems like that there is a redirect behind the given URL, that is why I have putted in the cURL call: curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
Here is my code:
set_time_limit(0);
//File to save the contents to
$fp = fopen ('result.zip', 'w+');
$url = "https://www.tyre24.com/nl/nl/user/login/userid/118151/password/5431tyre24/page/L2V4cG9ydC9kb3dubG9hZC90L01nPT0vYy9NVFE9Lw==";
//Here is the file we are downloading, replace spaces with %20
$ch = curl_init(str_replace(" ","%20",$url));
curl_setopt($ch, CURLOPT_TIMEOUT, 50);
//give curl the file pointer so that it can write to it
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$data = curl_exec($ch);//get curl response
//done
curl_close($ch);
Am I doing something wrong?

Answer 1

To download a zip file from the external source via CURL use one of the following approaches:
First approach:
function downloadZipFile($url, $filepath){
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
$raw_file_data = curl_exec($ch);
if(curl_errno($ch)){
echo 'error:' . curl_error($ch);
}
curl_close($ch);
file_put_contents($filepath, $raw_file_data);
return (filesize($filepath) > 0)? true : false;
}
downloadZipFile("http://www.colorado.edu/conflict/peace/download/peace_essay.ZIP", "result.zip");
A few comments:
to get data back from the remote source you have to set
CURLOPT_RETURNTRANSFER option
instead of consequent calls of fopen ... fwite functions you can
use file_put_contents which is more handy
And here is screenshot with result.zip which was downloaded a few minutes earlier using the above approach:
Second approach:
function downloadZipFile($url, $filepath){
$fp = fopen($filepath, 'w+');
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
//curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_exec($ch);
curl_close($ch);
fclose($fp);
return (filesize($filepath) > 0)? true : false;
}

Answer 2

Include following lines of code after curl_init() .i think this will work.
CURLOPT_RETURNTRANSFER :::
TRUE to return the transfer as a string of the return value of
curl_exec() instead of outputting it out directly.
CURLOPT_USERAGENT::The contents of the "User-Agent: " header to be used in a HTTP request.
Read more about curl_setopt here.
$ch = curl_init(str_replace(" ","%20",$url));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6");