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php curl_init函数用法教程详解

程序员文章站 2022-03-25 19:44:26
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  1. // 初始化一个 cURL 对象
  2. $curl = curl_init();
  3. // 设置你需要抓取的URL
  4. curl_setopt($curl, CURLOPT_URL, 'http://bbs.it-home.org');
  5. // 设置header
  6. curl_setopt($curl, CURLOPT_HEADER, 1);
  7. // 设置cURL 参数,要求结果保存到字符串中还是输出到屏幕上。
  8. curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  9. // 运行cURL,请求网页
  10. $data = curl_exec($curl);
  11. // 关闭URL请求
  12. curl_close($curl);
  13. // 显示获得的数据
  14. var_dump($data);
  15. ?>
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例2,POST数据 sendSMS.php,其可以接受两个表单域,一个是电话号码,一个是短信内容。 POST数据

  1. $phoneNumber = '13812345678';
  2. $message = 'This message was generated by curl and php';
  3. $curlPost = 'pNUMBER=' . urlencode($phoneNumber) . '&MESSAGE=' . urlencode($message) . '&SUBMIT=Send';
  4. $ch = curl_init();
  5. curl_setopt($ch, CURLOPT_URL, 'http://www.lxvoip.com/sendSMS.php');
  6. curl_setopt($ch, CURLOPT_HEADER, 1);
  7. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  8. curl_setopt($ch, CURLOPT_POST, 1);
  9. curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
  10. $data = curl_exec();
  11. curl_close($ch);
  12. ?>
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例3,使用代理服务器。

  1. $ch = curl_init();
  2. curl_setopt($ch, CURLOPT_URL, 'http://bbs.it-home.org');
  3. curl_setopt($ch, CURLOPT_HEADER, 1);
  4. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  5. curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
  6. curl_setopt($ch, CURLOPT_PROXY, 'proxy.lxvoip.com:1080');
  7. curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'user:password');
  8. $data = curl_exec();
  9. curl_close($ch);
  10. ?>
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例4,模拟登录。 Curl 模拟登录 discuz 程序,适合DZ7.0,将username改成自己的用户名,userpass改成自己密码。 Curl 模拟登录 discuz 程序

  1. !extension_loaded('curl') && die('The curl extension is not loaded.');

  2. $discuz_url = 'http://bbs.it-home.org';//论坛地址

  3. $login_url = $discuz_url .'/logging.php?action=login';//登录页地址
  4. $get_url = $discuz_url .'/my.php?item=threads'; //我的帖子
  5. $post_fields = array();

  6. //以下两项不需要修改
  7. $post_fields['loginfield'] = 'username';
  8. $post_fields['loginsubmit'] = 'true';
  9. //用户名和密码,必须填写
  10. $post_fields['username'] = 'lxvoip';
  11. $post_fields['password'] = '88888888';
  12. //安全提问
  13. $post_fields['questionid'] = 0;
  14. $post_fields['answer'] = '';
  15. //@todo验证码
  16. $post_fields['seccodeverify'] = '';
  17. //获取表单FORMHASH

  18. $ch = curl_init($login_url);
  19. curl_setopt($ch, CURLOPT_HEADER, 0);
  20. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  21. $contents = curl_exec($ch);
  22. curl_close($ch);
  23. preg_match('//i', $contents, $matches);
  24. if(!empty($matches)) {
  25. $formhash = $matches[1];
  26. } else {
  27. die('Not found the forumhash.');
  28. }
  29. //POST数据,获取COOKIE

  30. $cookie_file = dirname(__FILE__) . '/cookie.txt';
  31. //$cookie_file = tempnam('/tmp');
  32. $ch = curl_init($login_url);
  33. curl_setopt($ch, CURLOPT_HEADER, 0);
  34. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  35. curl_setopt($ch, CURLOPT_POST, 1);
  36. curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
  37. curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
  38. curl_exec($ch);
  39. curl_close($ch);
  40. //带着上面得到的COOKIE获取需要登录后才能查看的页面内容

  41. $ch = curl_init($get_url);
  42. curl_setopt($ch, CURLOPT_HEADER, 0);
  43. curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
  44. curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
  45. $contents = curl_exec($ch);
  46. curl_close($ch);
  47. var_dump($contents);

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