PHP抓取天气预报的代码

$strurl="http://www.cma.gov.cn/tqyb/weatherdetail/54511.html";


$strhtmlarray=file($strurl);


$strlinehtml= implode('', $strhtmlarray);


eregi("3天预报(.*)指数查询", $strlinehtml, $head);


$head[0]=strip_tags($head[0]);


$head[0]=str_replace(" "," ",strip_tags($head[0]));




$head[0]=str_replace("3天预报","",$head[0]);


$head[0]=str_replace("时间","",$head[0]);


$head[0]=str_replace("天气概况","",$head[0]);


$head[0]=str_replace("气 温","",$head[0]);


$head[0]=str_replace("风向/风力","",$head[0]);


$head[0]=str_replace("指数查询","",$head[0]);


$head[0]=str_replace(" ","",$head[0]);


$result=preg_replace("/s+/", "|", $head[0]);


$resultarray=preg_split("/[|]/",$result);


//zm_cache::cache_write("weather",$result);


print_r($result);