Question

I would like to get the redirect URL using cURL in PHP.

The code I’m currently using is:

public function request($uri = null)
{
    $redirects = 0;

    if ($uri === null) {
        $uri = $this->getUri();
    }

    while ($redirects < $this->options['maxredirects']) {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $uri);

        curl_setopt($ch, CURLOPT_USERAGENT, $this->options['useragent']);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, $this->options['timeout']);

        $result = curl_exec($ch);
        $info = curl_getinfo($ch);

        $this->addResult($result, $info);

        if (floor($info['http_code'] / 100) != 3) {
            return null;
        }

        $redirects++;
    }
}

I don’t what to use CURLOPT_FOLLOWLOCATION, because (correct me if wrong) that automatically follows the redirect.

I was hoping it would have been in curl_getinfo(), but it isn’t. It looks like I have to enable CURLOPT_HEADER and parse the header to get the ‘next’ URL.

• Is this correct?
• If “Yes” how would I be able to parse the header? E.g. can I safely explode() the string on \n and find the item which starts with Location:?

Answer 1

Yes, you set CURLOPT_HEADER to true and then parse the string by exploding it with \r\n.
There is also other ways, but not sure if they are valid in your case – get_headers() and http://www.php.net/manual/en/function.http-head.php