利用PHP抓取百度阅读的方法示例

bookId = $bookId; $this->bookToken = $bookToken; $this->cookie = $cookie; } public static function parseNode($node){ $str = ''; if(is_string($node['c'])){ $str .= $node['c']; }else if(is_array($node['c'])){ foreach($node['c'] as $d){ $str .= self::parseNode($d); } } switch($node['t']){ case 'h2': $str .= "nn"; break; case 'br': case 'div': case 'p': $str .= "n"; break; case 'img': case 'span': break; case 'obj': $tmp = '(' . self::parseNode($node['data'][0]) . ')'; $str .= str_replace("n",'',$tmp); break; default: trigger_error('Unkown type:'.$node['t'],E_USER_WARNING); break; } return $str; } public function get($page = 1){ echo "getting page {$page}...n"; $ch = curl_init(); $url = sprintf('http://wenku.baidu.com/content/%s/?m=%s&type=json&cn=%d',$this->bookId,$this->token,$page); curl_setopt_array($ch,array( CURLOPT_URL => $url,CURLOPT_RETURNTRANSFER => 1,CURLOPT_HEADER => 0,CURLOPT_HTTPHEADER => array('Cookie: '. $this->cookie) )); $ret = json_decode(curl_exec($ch),true); curl_close($ch); $str = ''; if(!empty($ret)){ $str .= self::parseNode($ret); $str .= $this->get($page + 1); } return $str; } public function start(){ $this->result = $this->get(); } public function getResult(){ return $this->result; } public function saveTo($path){ if(empty($this->result)){ trigger_error('Result is empty',E_USER_ERROR); return; } file_put_contents($path,$this->result); echo "save to {$path}n"; } } //使用示例 $yuedu = new BaiduYuedu('49422a3769eae009581becba','8ed1dedb240b11bf0731336eff95093f','你的百度域cookie'); $yuedu->start(); $yuedu->saveTo('result.txt');