php - PHP - cURL 获取响应正文

Question

由于预览为空，如何从 URL 打印响应内容

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_REFERER, $ref);
    curl_setopt($ch, CURLOPT_COOKIEJAR, cookie.txt');
    curl_setopt($ch, CURLOPT_COOKIEFILE, cookie.txt');
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
    $output = curl_exec($ch);
    curl_close($ch);

图片：

Answer 1

1. 你需要回应这样的回应

   echo $output; 
   

2. 我注意到您在 cookie 文件和 cookie jar 的名称周围缺少单引号。它们应该变成

   curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
   curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookie.txt');