在php中要实现用户登录我们一般都会到curl模拟登陆功能，下面我就基于php的curl来实现登录人人网哦，完整的例子希望对各位有帮助。

<?php
$cookie_file = dirname(__FILE__) . "/renren.cookie";
$login_url = 'http://passport.renren.com/PLogin.do';
$post_fields['email'] = ''; //人人的帐号
$post_fields['password'] = ''; //人人密码
$post_fields['origURL'] = 'http%3A%2F%2Fhome.renren.com%2FHome.do';
$post_fields['domain'] = 'renren.com';
$ch = curl_init($login_url);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5');
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_MAXREDIRS, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
$content = curl_exec($ch);
curl_close($ch);
//匹配用户的ID
$send_url = 'http://www.renren.com/home';
$ch = curl_init($send_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
//获取用户id
$tmp = explode('/', $info['redirect_url']);
$uid = array_pop($tmp);
unset($tmp);
//$uid = "305115027";
//获取token和rtk
$send_url = 'http://www.renren.com/' . $uid;
$ch = curl_init($send_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
$tmp = curl_exec($ch);
curl_close($ch);
preg_match_all("/get_check:'(.*?)',get_check_x:'(.*?)',/is", $tmp, $arr);
$token = $arr[1][0]; //1121558104
$rtk = $arr[2][0]; //e9a9cb2
//发布信息
$poststr['content'] = "这就是一个测试而已！！！";
$poststr['withInfo'] = '{"wpath":[]}';
$poststr['hostid:'] = $uid;
$poststr['privacyParams'] = '{"sourceControl": 99}';
$poststr['requestToken'] = $token;
$poststr['_rtk'] = $rtk;
$poststr['channel'] = "renren";
$head = array(
    'Referer:http://shell.renren.com/ajaxproxy.htm',
    'X-Requested-With:XMLHttpRequest',
);
$ch = curl_init("http://shell.renren.com/{$uid}/status");
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5');
curl_setopt($ch, CURLOPT_HTTPHEADER, $head);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_MAXREDIRS, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $poststr);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
$content = curl_exec($ch);
curl_close($ch);
$data = json_decode($content, true);
if ($data["code"] == "0") {
    echo "发布成功！";
} else {
    echo "shit !!!";
}
?>

文章网址:http://www.phprm.com/develop/59264.html

随意转载^^但请附上教程地址。