改進後的《自動顯示天氣預報》小程序（Linux和Windows環境都可以）-PHP應用-PHP教程-

這次改進，主要是增加了圖象的獲取，並提供了一個比較完整的獲取遠端文件的函數。具體代碼如下：
<?
$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");
          }