php使用curl模拟登录人人(校内)网的简单实例

$login_url = 'http://passport.renren.com/plogin.do'; 
 
$post_fields['email'] = 'xxxx'; 
$post_fields['password'] = 'xxxx'; 
$post_fields['origurl'] = 'http%3a%2f%2fhome.renren.com%2fhome.do'; 
$post_fields['domain'] = 'renren.com'; 
//cookie文件存放在网站根目录的temp文件夹下 
$cookie_file = tempnam('./temp','cookie'); 
 
$ch = curl_init($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, $cookie_file); 
curl_exec($ch); 
curl_close($ch); 
 
//带上cookie文件，访问人人网首页 
$send_url='http://home.renren.com/home.do'; 
$ch = curl_init($send_url); 
curl_setopt($ch, curlopt_header, 0); 
curl_setopt($ch, curlopt_returntransfer, 1); 
curl_setopt($ch, curlopt_cookiefile, $cookie_file); 
$contents = curl_exec($ch); 
curl_close($ch); 
 
//清理cookie文件 
unlink($cookie_file); 
 
//输出人人网首页的内容 
print_r($contents);