php 读取 sogourank 与 ChinaRank信息

function sogouRank($domain)
{
 $rank = '';
 $pr = 0;
 $content = get_content('http://www.sogou.com/web?query='.$domain);
 if(preg_match("/([0-9]{1,})/", $content, $matches))
 {
  $pr = intval($matches[1]);
  $width = ceil(65*$pr/100);
  $rank = '';
 }
 $rank = ''.$rank.' '.$pr;
 return $rank;
}

function ChinaRank($domain)
{
 $rank = '';
 $content = get_content('http://www.chinarank.org.cn/detail/Info.do?url='.$domain);
 if(preg_match("/排名(.*)/", $content, $matches))
 {
  $p = trim(str_replace('', '', $matches[1]));
  $p = explode("", $p);
  if(isset($p[1])) $rank.= ' 今日:'.$p[1];
  if(isset($p[2])) $rank.= ' 本周:'.$p[2];
  if(isset($p[3])) $rank.= ' 三月:'.$p[3];
 }
 $rank = ''.$rank.'';
 return $rank;
}