//获得HTML里的文本

//-----------------------------
//获得HTML里的文本
//-----------------------------
function Html2Text($str)
{
$str = preg_replace("/ <sty(.*)\\/style>| <scr(.*)\\/script>| <!--(.*)-->/isU","",$str);
$alltext = "";
$start = 1;
for($i=0;$i <strlen($str);$i++){
if($start==0 && $str[$i]==">") $start = 1;
else if($start==1){
if($str[$i]==" <"){ $start = 0; $alltext .= " "; }
else if(ord($str[$i])>32) $alltext .= $str[$i];
}
}
$alltext = str_replace("　","",$alltext);
$alltext = preg_replace("/&([^;&]*)(;|&)/","",$alltext);
$alltext = preg_replace("/[ ]+/s"," ",$alltext);
return $alltext;
}