如何从php curl获取cookie到变量

因此，其他公司的一些人认为，如果不使用soap或xml-rpc或rest或任何其他合理的通信协议，而只是将所有响应作为cookie嵌入到标头中，那将是很棒的。

我需要从这些curl响应中将这些cookie作为数组拉出。如果我不得不花一辈子为此编写解析器，我将非常不高兴。

有谁知道如何简单地做到这一点，最好不要在文件中写入任何内容？

如果有人可以帮助我，我将非常感激。

$ch = curl_init('http://www.google.com/');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// get headers too with this line
curl_setopt($ch, CURLOPT_HEADER, 1);
$result = curl_exec($ch);
// get cookie
// multi-cookie variant contributed by @Combuster in comments
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi', $result, $matches);
$cookies = array();
foreach($matches[1] as $item) {
    parse_str($item, $cookie);
    $cookies = array_merge($cookies, $cookie);
}
var_dump($cookies);

尽管这个问题已经很老了，并且可接受的响应是有效的，但是我发现它有点混乱，因为HTTP响应的内容（HTML，XML，JSON，二进制或其他）与标头混合在一起。

我找到了另一种选择。CURL提供了一个选项（CURLOPT_HEADERFUNCTION）来设置将为每个响应标题行调用的回调。该函数将接收curl对象和带有标题行的字符串。

您可以使用如下代码（改编自TML响应）：

$cookies = Array();
$ch = curl_init('http://www.google.com/');
// Ask for the callback.
curl_setopt($ch, CURLOPT_HEADERFUNCTION, "curlResponseHeaderCallback");
$result = curl_exec($ch);
var_dump($cookies);

function curlResponseHeaderCallback($ch, $headerLine) {
    global $cookies;
    if (preg_match('/^Set-Cookie:\s*([^;]*)/mi', $headerLine, $cookie) == 1)
        $cookies[] = $cookie;
    return strlen($headerLine); // Needed by curl
}

该解决方案的缺点是使用全局变量，但是我想这对于短脚本来说不是问题。如果将curl包装到一个类中，则始终可以使用静态方法和属性。

这样做不需要regexps，但需要PECL HTTP扩展名。

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
$result = curl_exec($ch);
curl_close($ch);

$headers = http_parse_headers($result);
$cookobjs = Array();
foreach($headers AS $k => $v){
    if (strtolower($k)=="set-cookie"){
        foreach($v AS $k2 => $v2){
            $cookobjs[] = http_parse_cookie($v2);
        }
    }
}

$cookies = Array();
foreach($cookobjs AS $row){
    $cookies[] = $row->cookies;
}

$tmp = Array();
// sort k=>v format
foreach($cookies AS $v){
    foreach ($v  AS $k1 => $v1){
        $tmp[$k1]=$v1;
    }
}

$cookies = $tmp;
print_r($cookies);

如果您使用CURLOPT_COOKIE_FILE和CURLOPT_COOKIE_JAR，curl将在文件中读取cookie或将cookie写入文件。卷曲完成后，您可以根据需要读取和/或修改它。

libcurl还提供了CURLOPT_COOKIELIST来提取所有已知的cookie。您需要做的就是确保PHP / CURL绑定可以使用它。

这里的某人可能会觉得有用。hhb_curl_exec2的工作原理与curl_exec非常相似，但是arg3是一个数组，该数组将填充有返回的http标头（数字索引），而arg4是一个数组，该数组将填充有返回的cookie（$ cookies [“ expires”] =>“星期五，2016年5月6日05:58:51”）和arg5将填充...有关curl发出的原始请求的信息。

缺点是它要求CURLOPT_RETURNTRANSFER处于打开状态，否则会出错，并且如果您已经将它们用于其他用途，它将覆盖CURLOPT_STDERR 和 CURLOPT_VERBOSE。（我可能稍后再解决）

使用方法示例：

<?php
header("content-type: text/plain;charset=utf8");
$ch=curl_init();
$headers=array();
$cookies=array();
$debuginfo="";
$body="";
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$body=hhb_curl_exec2($ch,'https://www.youtube.com/',$headers,$cookies,$debuginfo);
var_dump('$cookies:',$cookies,'$headers:',$headers,'$debuginfo:',$debuginfo,'$body:',$body);

和功能本身。

function hhb_curl_exec2($ch, $url, &$returnHeaders = array(), &$returnCookies = array(), &$verboseDebugInfo = "")
{
    $returnHeaders    = array();
    $returnCookies    = array();
    $verboseDebugInfo = "";
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }
    $verbosefileh = tmpfile();
    $verbosefile  = stream_get_meta_data($verbosefileh);
    $verbosefile  = $verbosefile['uri'];
    curl_setopt($ch, CURLOPT_VERBOSE, 1);
    curl_setopt($ch, CURLOPT_STDERR, $verbosefileh);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    $html             = hhb_curl_exec($ch, $url);
    $verboseDebugInfo = file_get_contents($verbosefile);
    curl_setopt($ch, CURLOPT_STDERR, NULL);
    fclose($verbosefileh);
    unset($verbosefile, $verbosefileh);
    $headers       = array();
    $crlf          = "\x0d\x0a";
    $thepos        = strpos($html, $crlf . $crlf, 0);
    $headersString = substr($html, 0, $thepos);
    $headerArr     = explode($crlf, $headersString);
    $returnHeaders = $headerArr;
    unset($headersString, $headerArr);
    $htmlBody = substr($html, $thepos + 4); //should work on utf8/ascii headers... utf32? not so sure..
    unset($html);
    //I REALLY HOPE THERE EXIST A BETTER WAY TO GET COOKIES.. good grief this looks ugly..
    //at least it's tested and seems to work perfectly...
    $grabCookieName = function($str)
    {
        $ret = "";
        $i   = 0;
        for ($i = 0; $i < strlen($str); ++$i) {
            if ($str[$i] === ' ') {
                continue;
            }
            if ($str[$i] === '=') {
                break;
            }
            $ret .= $str[$i];
        }
        return urldecode($ret);
    };
    foreach ($returnHeaders as $header) {
        //Set-Cookie: crlfcoookielol=crlf+is%0D%0A+and+newline+is+%0D%0A+and+semicolon+is%3B+and+not+sure+what+else
        /*Set-Cookie:ci_spill=a%3A4%3A%7Bs%3A10%3A%22session_id%22%3Bs%3A32%3A%22305d3d67b8016ca9661c3b032d4319df%22%3Bs%3A10%3A%22ip_address%22%3Bs%3A14%3A%2285.164.158.128%22%3Bs%3A10%3A%22user_agent%22%3Bs%3A109%3A%22Mozilla%2F5.0+%28Windows+NT+6.1%3B+WOW64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F43.0.2357.132+Safari%2F537.36%22%3Bs%3A13%3A%22last_activity%22%3Bi%3A1436874639%3B%7Dcab1dd09f4eca466660e8a767856d013; expires=Tue, 14-Jul-2015 13:50:39 GMT; path=/
        Set-Cookie: sessionToken=abc123; Expires=Wed, 09 Jun 2021 10:18:14 GMT;
        //Cookie names cannot contain any of the following '=,; \t\r\n\013\014'
        //
        */
        if (stripos($header, "Set-Cookie:") !== 0) {
            continue;
            /**/
        }
        $header = trim(substr($header, strlen("Set-Cookie:")));
        while (strlen($header) > 0) {
            $cookiename                 = $grabCookieName($header);
            $returnCookies[$cookiename] = '';
            $header                     = substr($header, strlen($cookiename) + 1); //also remove the = 
            if (strlen($header) < 1) {
                break;
            }
            ;
            $thepos = strpos($header, ';');
            if ($thepos === false) { //last cookie in this Set-Cookie.
                $returnCookies[$cookiename] = urldecode($header);
                break;
            }
            $returnCookies[$cookiename] = urldecode(substr($header, 0, $thepos));
            $header                     = trim(substr($header, $thepos + 1)); //also remove the ;
        }
    }
    unset($header, $cookiename, $thepos);
    return $htmlBody;
}

function hhb_curl_exec($ch, $url)
{
    static $hhb_curl_domainCache = "";
    //$hhb_curl_domainCache=&$this->hhb_curl_domainCache;
    //$ch=&$this->curlh;
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }

    $tmpvar = "";
    if (parse_url($url, PHP_URL_HOST) === null) {
        if (substr($url, 0, 1) !== '/') {
            $url = $hhb_curl_domainCache . '/' . $url;
        } else {
            $url = $hhb_curl_domainCache . $url;
        }
    }
    ;

    curl_setopt($ch, CURLOPT_URL, $url);
    $html = curl_exec($ch);
    if (curl_errno($ch)) {
        throw new Exception('Curl error (curl_errno=' . curl_errno($ch) . ') on url ' . var_export($url, true) . ': ' . curl_error($ch));
        // echo 'Curl error: ' . curl_error($ch);
    }
    if ($html === '' && 203 != ($tmpvar = curl_getinfo($ch, CURLINFO_HTTP_CODE)) /*203 is "success, but no output"..*/ ) {
        throw new Exception('Curl returned nothing for ' . var_export($url, true) . ' but HTTP_RESPONSE_CODE was ' . var_export($tmpvar, true));
    }
    ;
    //remember that curl (usually) auto-follows the "Location: " http redirects..
    $hhb_curl_domainCache = parse_url(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL), PHP_URL_HOST);
    return $html;
}

接受的答案似乎将搜索整个响应消息。如果单词“ Set-Cookie”位于一行的开头，则可能会导致Cookie标头的错误匹配。虽然在大多数情况下应该没问题。更安全的方法可能是从头开始阅读消息，直到第一个空行指示消息头的结尾。这只是一个替代解决方案，应查找第一个空白行，然后在这些行上使用preg_grep，仅找到“ Set-Cookie”。

    curl_setopt($ch, CURLOPT_HEADER, 1);
    //Return everything
    $res = curl_exec($ch);
    //Split into lines
    $lines = explode("\n", $res);
    $headers = array();
    $body = "";
    foreach($lines as $num => $line){
        $l = str_replace("\r", "", $line);
        //Empty line indicates the start of the message body and end of headers
        if(trim($l) == ""){
            $headers = array_slice($lines, 0, $num);
            $body = $lines[$num + 1];
            //Pull only cookies out of the headers
            $cookies = preg_grep('/^Set-Cookie:/', $headers);
            break;
        }
    }

我的理解是curl必须将Cookie从写入文件（curl -c cookie_file）。如果您正在curl通过PHP exec或system函数（或该系列中的任何东西）运行，则应该能够将cookie保存到文件中，然后打开文件并读取它们。