如何通过php程序模拟用户登录

使用 php curl模拟 

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print?

01

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

03

04	$discuz_url = '';//论坛地址

05	$login_url = $discuz_url .'/do.php?ac=login';//登录页地址

06	$get_url = $discuz_url .'/space.php?do=home'; //我的帖子

07

08	$post_fields = array();

09	//以下两项不需要修改

10	$post_fields['loginfield'] = 'username';

11	$post_fields['loginsubmit'] = 'true';

12	//用户名和密码，必须填写

13	$post_fields['username'] = '你的用户名';

14	$post_fields['password'] = '你的密码';

15	$post_fields['refer'] = 'space.php?do=home';

16

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	$post_fields['formhash']=$formhash;

30	//POST数据，获取COOKIE

31	$cookie_file = dirname(__FILE__) . '/cookie.txt';

32	//$cookie_file = tempnam('/tmp');

33	$ch = curl_init($login_url);

34	curl_setopt($ch, CURLOPT_HEADER, 0);

35	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

36	curl_setopt($ch, CURLOPT_POST, 1);

37	curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);

38	curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);

39	curl_exec($ch);

40	curl_close($ch);

41

42	//带着上面得到的COOKIE获取需要登录后才能查看的页面内容

43	$ch = curl_init($get_url);

44	curl_setopt($ch, CURLOPT_HEADER, 0);

45	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);

46	curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);

47	$contents = curl_exec($ch);

48	curl_close($ch);

49

50	var_dump($contents);

51

?>