Returning header as array using Curl

Question

I\'m trying to get the response & the response headers from CURL using PHP, specifically for Content-Disposition: attachment; so I can return the filename passed within

Answer 1

Fixing issues:

• Error when content of the header contained ': '(split string)
• Multiline-headers were not supported
• Duplicate headers (Set-Cookie) were not supported

This is my take on the topic ;-)

list($head, $body)=explode("\r\n\r\n", $content, 2);
$headers=parseHeaders($head); 

function parseHeaders($text) {
    $headers=array();

    foreach (explode("\r\n", $text) as $i => $line) {
        // Special HTTP first line
        if (!$i && preg_match('@^HTTP/(?[0-9.]+)\s+(?\d+)(?:\s+(?.*))?$@', $line, $match)) {
            $headers['@status']=$line;
            $headers['@code']=$match['code'];
            $headers['@protocol']=$match['protocol'];
            $headers['@message']=$match['message'];
            continue;
        }

        // Multiline header - join with previous
        if ($key && preg_match('/^\s/', $line)) {
            $headers[$key].=' '.trim($line);
            continue;
        }

        list ($key, $value) = explode(': ', $line, 2);
        $key=strtolower($key);
        // Append duplicate headers - namely Set-Cookie header
        $headers[$key]=isset($headers[$key]) ? $headers[$key].' ' : $value;
    }

    return $headers;
}