这次改进，主要是增加了图象的获取，并提供了一个比较完整的获取远端文件的函数。具体代码如下：
<?
$fcont=file("http://www.bjmb.gov.cn/today.asp");
$arr=array();
for($i=0;$i<count($fcont);$i++){
$tmp=$fcont[$i];
$tmp=ereg_replace("<br>"," ",$tmp);
if(!strstr(strtolower($tmp),"img")){
$tmp=trim(strip_tags($tmp));
} else {
$st=ereg_replace("><",">⌒<",$tmp);
$stt=split("⌒",$st);
foreach($stt as $key => $value){
if(strstr($value,"img") ){
$tmp=$value;
if(strstr($tmp,"bt9.jpg") || strstr($tmp,"colline.gif")){
$tmp="";
}else{
$tmp=ereg_replace("\"","",$tmp);
$st=split("src=",$tmp);
$st1=split(" ",$st[1]);getpic("http://www.bjmb.gov.cn/$st1[0]","image");
if(count($st)>2){
$st2=split(" ",$st[2]);getpic("http://www.bjmb.gov.cn/$st1[0]","image");
}
$tmp=ereg_replace("src=","width=30 height=30 align=absmiddle src=",$tmp);
}
}
}
}
if(trim($tmp)!="" && trim($tmp)!=" ") $arr[]=$tmp;
}
$yb=array();
for($i=2;$i<count($arr)-6;$i++){
$yb[]=$arr[$i];
}
?>
<br>
<SCRIPT LANGUAGE="JavaScript">
<!--
syb="";
<?
$exp="-3-7-9-14-18-20-25-";
for ($i=1;$i<count($yb);$i++){
if (!strstr($exp,"-".(string)($i+1)."-")){
?>
syb=syb+'<?=$yb[$i];?> ';
<?}}?>
document.write("<?=$yb[0]?>"+":");
document.write("<marquee width=400 align=middle scrollamount=5 scrolldelay=200>"+syb+"预报</marquee>");
//-->
</SCRIPT>
<?
function getpic($url,$dir){
$tmp=split("/",$url);
$fname=$tmp[count($tmp)-1];
if(strstr($dir,"\\")){
if(substr($dir,-2)=="\\") $file=$dir.$fname;else $file=$dir."\\".$fname;
}else{
if(substr($dir,"/")){
if(substr($dir,-1)=="/") $file=$dir.$fname;else $file=$dir."/".$fname;
}
else{
return ;
}
}
if(!(file_exists("$dir") && is_dir("$dir"))) mkdir($dir,0777);
if(file_exists($file)) return ;
$fpo=fopen($file,"wb");
if(!$fpo) return ;
$num=0;
do{
$num++;
$fpi=fopen($url,"r");
}while(!$fpi && $num<3);
if(!fpi) return ;
while(!feof($fpi)){
$cont=fread($fpi,128);
fwrite($fpo,$cont,128);
}
fclose($fpi);
fclose($fpo);
}
?>
