c.hillからの回答は素晴らしいですが、最初の応答が301または302の場合、コードは処理しません。その場合、get_header_from_curl_response()によって返される配列に最初のヘッダーのみが追加されます。
各ヘッダーを含む配列を返すように関数を更新しました。
まず、この行を使用して、ヘッダーコンテンツのみを含む変数を作成します
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$header = substr($a, 0, $header_size);
$ headerを新しいget_headers_from_curl_response()関数に渡すよりも:
static function get_headers_from_curl_response($headerContent)
{
$headers = array();
// Split the string on every "double" new line.
$arrRequests = explode("\r\n\r\n", $headerContent);
// Loop of response headers. The "count() -1" is to
//avoid an empty row for the extra line break before the body of the response.
for ($index = 0; $index < count($arrRequests) -1; $index++) {
foreach (explode("\r\n", $arrRequests[$index]) as $i => $line)
{
if ($i === 0)
$headers[$index]['http_code'] = $line;
else
{
list ($key, $value) = explode(': ', $line);
$headers[$index][$key] = $value;
}
}
}
return $headers;
}
この関数は次のようなヘッダーを取ります:
HTTP/1.1 302 Found
Cache-Control: no-cache
Pragma: no-cache
Content-Type: text/html; charset=utf-8
Expires: -1
Location: http://www.website.com/
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
Date: Sun, 08 Sep 2013 10:51:39 GMT
Connection: close
Content-Length: 16313
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
Date: Sun, 08 Sep 2013 10:51:39 GMT
Connection: close
Content-Length: 15519
そして、次のような配列を返します。
(
[0] => Array
(
[http_code] => HTTP/1.1 302 Found
[Cache-Control] => no-cache
[Pragma] => no-cache
[Content-Type] => text/html; charset=utf-8
[Expires] => -1
[Location] => http://www.website.com/
[Server] => Microsoft-IIS/7.5
[X-AspNet-Version] => 4.0.30319
[Date] => Sun, 08 Sep 2013 10:51:39 GMT
[Connection] => close
[Content-Length] => 16313
)
[1] => Array
(
[http_code] => HTTP/1.1 200 OK
[Cache-Control] => private
[Content-Type] => text/html; charset=utf-8
[Server] => Microsoft-IIS/7.5
[X-AspNet-Version] => 4.0.30319
[Date] => Sun, 08 Sep 2013 10:51:39 GMT
[Connection] => close
[Content-Length] => 15519
)
)