采集 | 百度实时热点排行榜

(.*?)<\/td>/si'; 
preg_match_all($block_rule,$str,$fenlei);
if(!empty($fenlei)){
  $count = count($fenlei[1]);
  for($i=0;$i<$count;$i++){
    $cat_rule='/(.*?)<\/a>/si';
    preg_match_all($cat_rule,$fenlei[1][$i],$cats);
    if(!empty($cats)){
      $url_r = $cats[1][0];
      $name_r = $cats[3][0];
      $num = $i+1; 
      echo $num.'  '.$name_r.'
 ';
    }
  }
}
 
//curl获取网页内容
function get_str($url){
  $UserAgent = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506; .NET CLR 3.5.21022; .NET CLR 1.0.3705; .NET CLR 1.1.4322)';  
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $url);  
  curl_setopt($curl, CURLOPT_HEADER, 0);  
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);  
  curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);  
  curl_setopt($curl, CURLOPT_ENCODING, ''); 
  curl_setopt($curl, CURLOPT_USERAGENT, $UserAgent);  
  curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);  
  curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);//超时 0不限制

  $data = curl_exec($curl);   
  curl_close($curl); 
	return $data;
}