通过curl登录访问的PHP代码
2018-07-20 来源:open-open
<?php $data='username=zjzhoufy@126.com&password=1q2w3e&remember=1'; $curlobj = curl_init(); // 初始化 curl_setopt($curlobj, CURLOPT_URL, "http://www.imooc.com/user/login"); // 设置访问网页的URL curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, true); // 执行之后不直接打印出来 // Cookie相关设置,这部分设置需要在所有会话开始之前设置 date_default_timezone_set('PRC'); // 使用Cookie时,必须先设置时区 curl_setopt($curlobj, CURLOPT_COOKIESESSION, TRUE); curl_setopt($curlobj, CURLOPT_COOKIEJAR, 'cookie.txt '); //保存 curl_setopt($curlobj, CURLOPT_COOKIEFILE, 'cookie.txt '); //读取 curl_setopt($curlobj, CURLOPT_HEADER, 0); curl_setopt($curlobj, CURLOPT_FOLLOWLOCATION, 1); // 这样能够让cURL支持页面链接跳转 curl_setopt($curlobj, CURLOPT_COOKIE,session_name().'='.session_id()); curl_setopt($curlobj, CURLOPT_POST, 1); curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data); curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded; charset=utf-8", "Content-length: ".strlen($data) )); curl_exec($curlobj); // 执行 curl_setopt($curlobj, CURLOPT_URL, "http://www.imooc.com/space/index"); curl_setopt($curlobj, CURLOPT_POST, 0); curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("Content-type: text/xml" )); $output=curl_exec($curlobj); // 执行 curl_close($curlobj); // 关闭cURL echo $output; ?>
如上代码并不完美,我们应该把cookie存到缓存中,不应该持久化,并且这样的持久化只能是单用户访问才行。
所以,其实我们只要设置
CURLOPT_COOKIESESSION
如下即可
<?php $data='username=demo_demo@126.com&password=123456qwe&remember=1'; $curlobj = curl_init(); // 初始化 curl_setopt($curlobj, CURLOPT_URL, "http://www.imooc.com/user/login"); // 设置访问网页的URL curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, true); // 执行之后不直接打印出来 // Cookie相关设置,这部分设置需要在所有会话开始之前设置 date_default_timezone_set('PRC'); // 使用Cookie时,必须先设置时区 curl_setopt($curlobj, CURLOPT_COOKIESESSION, TRUE); curl_setopt($curlobj, CURLOPT_HEADER, 0); curl_setopt($curlobj, CURLOPT_COOKIE,session_name().'='.session_id()); // 注释掉这行,因为这个设置必须关闭安全模式 以及关闭open_basedir,对服务器安全不利 //curl_setopt($curlobj, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($curlobj, CURLOPT_POST, 1); curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data); curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded; charset=utf-8", "Content-length: ".strlen($data) )); curl_exec($curlobj); // 执行 curl_setopt($curlobj, CURLOPT_URL, "http://www.imooc.com/space/index"); curl_setopt($curlobj, CURLOPT_POST, 0); curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("Content-type: text/xml" )); $output=curl_redir_exec($curlobj); // 执行 curl_close($curlobj); // 关闭cURL echo $output; /** * 自定义实现页面链接跳转抓取 */ function curl_redir_exec($ch,$debug="") { static $curl_loops = 0; static $curl_max_loops = 20; if ($curl_loops++ >= $curl_max_loops) { $curl_loops = 0; return FALSE; } curl_setopt($ch, CURLOPT_HEADER, true); // 开启header才能够抓取到重定向到的新URL curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $data = curl_exec($ch); // 分割返回的内容 $h_len = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($data,0,$h_len); $data = substr($data,$h_len - 1); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); if ($http_code == 301 || $http_code == 302) { $matches = array(); preg_match('/Location:(.*?)\n/', $header, $matches); $url = @parse_url(trim(array_pop($matches))); // print_r($url); if (!$url) { //couldn't process the url to redirect to $curl_loops = 0; return $data; } $last_url = parse_url(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL)); if (!isset($url['scheme'])) $url['scheme'] = $last_url['scheme']; if (!isset($url['host'])) $url['host'] = $last_url['host']; if (!isset($url['path'])) $url['path'] = $last_url['path']; $new_url = $url['scheme'] . '://' . $url['host'] . $url['path'] . (isset($url['query'])?'?'.$url['query']:''); curl_setopt($ch, CURLOPT_URL, $new_url); return curl_redir_exec($ch); } else { $curl_loops=0; return $data; } } ?>
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