带有PHP CURL的CRSF令牌不起作用

我正在开发具有自动登录网站功能的php curl。但是，我遇到问题，该站点需要将_csrf_token发送到服务器。我的代码如下。首先，该程序称为addLoginData（$users），然后是getToken（）和getHTTPContent（）。

我不知道为什么代码不起作用。

public function addLoginData($users)
{
    foreach($users as $user)
    {
        $login_arr = array(
            /*'commit' => 'Login',
            'nickname' => $user['username'],
            'password' => $user['password'],
            'save_cookie' => '1'*/
            '_csrf_token' => $this->getToken(),
            'action'     => 'login',
            'commit' => 'Einloggen',
            'invisibility' => 0,
            'nickname' =>   $user['username'],
            'online_status' => 0,
            'password' =>   $user['password'],
            'referer' => '@homepage_guest',
            'remember_me' => 1
        );          
        array_push($this->loginArr, $login_arr);
    }
}
public function getToken()
{   
    $content = $this->getHTTPContent($this->loginURL,$this->rootDomain);        
    $token = '';
    if(!empty($content)) {          
        $html = str_get_html($content);
        if($html->find("input[name=_csrf_token]",0)) {
            foreach($html->find("input[name=_csrf_token]") as $span) {          
                $token = $span->value;  
            }
        }
    }       
    return $token;
}
protected function getHTTPContent($url, $referer, $cookiePath=null, $postContent=null, $get_info = FALSE, $header = null)
{
    $ch = curl_init();
    if($this->command['proxy_type'] != 3 && !empty($this->proxy_ip) && !empty($this->proxy_port) && !empty($this->proxy_type)){
        curl_setopt($ch, CURLOPT_PROXY, $this->proxy_ip);
        curl_setopt($ch, CURLOPT_PROXYPORT, $this->proxy_port);
        curl_setopt($ch, CURLOPT_PROXYTYPE, $this->proxy_type);
    }
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_REFERER, $referer);
    curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 60); 
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    // curl_setopt($ch, CURLOP  T_CAINFO, dirname(__FILE__)."/cacert.pem");
    $this->savelog("=>".$ch);   
    print_r($ch);
    if($header !== null) {
        curl_setopt($ch,CURLOPT_HTTPHEADER, $header);
    }

    if($cookiePath !== null)
    {
        curl_setopt($ch, CURLOPT_COOKIEFILE, $cookiePath);
        curl_setopt($ch, CURLOPT_COOKIEJAR, $cookiePath);
    }
    if($postContent !== null || $this->nullPost == 1)
    {   
        curl_setopt($ch, CURLOPT_POST, 1);
        if($this->nullPost == 0) {
            curl_setopt($ch, CURLOPT_POSTFIELDS, (($this->_special_post == 1) ? $postContent : http_build_query($postContent)));
            $this->_special_post = 0;
            if($this->_special_post == 1){
                echo 'Special Search';
            }
            var_dump($postContent);
        }
        $this->nullPost = 0;
    }
    $content = curl_exec($ch);
    $header  = curl_getinfo($ch);
    curl_close($ch);
    echo '<p>URL : ', $url,'</p>';
    echo '<p><textarea style="width:600px; height:400px;">',$content,'</textarea></p>';
    if(empty($content)) {
        $this->savelog('No Response from url : '.$url.' / Proxy : '.$this->proxy_ip.':'.$this->proxy_port); botutil::setNoResponse($this->commandID, TRUE, $this);
    } else {
        botutil::setNoResponse($this->commandID, FALSE, $this);
    }
    if($get_info === TRUE) {
        return array(
            'header' => $header,
            'content' => $content
        );
    } else {
        return $content;
    }
}