如果需要实现程序自动登录功能，涉及到curl时发送cookie

关键方法

  • curl_setopt($curl, CURLOPT_HEADER, TRUE);设置返回response header
  • curl_setopt($curl, CURLOPT_COOKIE, $cookie);设置发送的cookie内容

Demo

该方法发送请求时，获取response header中的Set-Cookie参数，获得PHPSESSID的值

private function go_login_page() {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $this->login_page_url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($curl, CURLOPT_HEADER, TRUE);
    $content = curl_exec($curl);
    preg_match('/^Set-Cookie: PHPSESSID=(.*?);/m', $content, $this->phpsessid);
    curl_close($curl);
}

请求登录接口，并把上一个请求中返回的cookie信息带到该请求中

private function go_login() {
    $curl = curl_init();
    $cookie = "PHPSESSID=" . $this->phpsessid;
    $post_data = 'username=xx&password=xx';

    curl_setopt($curl, CURLOPT_COOKIE, $cookie);
    curl_setopt($curl, CURLOPT_URL, $this->go_login);
    curl_setopt($curl, CURLOPT_POST, TRUE);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($curl, CURLOPT_HEADER, FALSE);
    $content = curl_exec($curl);
    curl_close($curl);
}