php中CURL实现模拟登录并采集数据_PHP教程

$login="http://www.phpyu.com/index.php?action=login";
$post_file="user=××&pw=××";
$cookie_file = tempnam('./temp','cookie');

$ch=curl_init($login_url); /////初始化一个CURL对象
curl_setopt($ch,CURLOPT_HEADER,0);

curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); ///设置不输出在浏览器上
curl_setopt($ch,CURLOPT_POST,1);

curl_setopt($ch,CURLOPT_POSTFIELDS,$post_file); ////传递一个作为HTTP "POST"操作的所有数据的字符串。
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); /////把返回来的cookie信息保存在$cookie_jar文件中
curl_exec($ch);///执行
curl_close($ch);////关闭

$url="http://www.phpyu.com/admin/××";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);

curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
$contents = curl_exec($ch);

$cookie_path = './'; //设置cookie保存路径

//-----登录要提交的表单数据---------------
$vars['username'] = '张三';
$vars['pwd'] = '123';
//-------------------------------------
$method_post = true;
//登录提交的url地址(表单中的action的绝对地址)
$url = 'http://****.com/login';
//----------------------------

$ch = curl_init();
$params[CURLOPT_URL] = $url; //请求url地址
$params[CURLOPT_HEADER] = true; //是否返回响应头信息
$params[CURLOPT_RETURNTRANSFER] = true; //是否将结果返回
$params[CURLOPT_FOLLOWLOCATION] = true; //是否重定向
$params[CURLOPT_USERAGENT] = 'Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1';

$postfields = '';
foreach ($vars as $key => $value){
$postfields .= urlencode($key) . '=' . urlencode($value) . '&';
}

$params[CURLOPT_POST] = true;
$params[CURLOPT_POSTFIELDS] = $postfields;

//判断是否有cookie,有的话直接使用
if (isset($_COOKIE['cookie_jar']) && ($_COOKIE['cookie_jar'] || is_file($_COOKIE['cookie_jar'])))
{
$params[CURLOPT_COOKIEFILE] = $_COOKIE['cookie_jar']; //这里判断cookie
}
else
{
$cookie_jar = tempnam($cookie_path, 'cookie'); //产生一个cookie文件
$params[CURLOPT_COOKIEJAR] = $cookie_jar; //写入cookie信息
setcookie('cookie_jar', $cookie_jar); //保存cookie路径
}
curl_setopt_array($ch, $params); //传入curl参数
$content = curl_exec($ch); //执行

echo '
'; echo $content; //输出登录结果
/*
//---------登录成功后再次请求其他地址,如果有多个可以循环执行---------
echo '
--------------------------------------------------------------------------------
';
$nexturl = 'http://****.com/test';
$params[CURLOPT_URL] = $nexturl;
$params[CURLOPT_POSTFIELDS] = '';
curl_setopt_array($ch, $params); //传入curl参数
$content = curl_exec($ch); //执行
echo $content; //输出请求结果
//-------------------------------------------------
*/
curl_close($ch); //关闭连接

?>

$params[CURLOPT_SSL_VERIFYPEER] = false;

$params[CURLOPT_SSL_VERIFYHOST] = false;