取得新浪天氣預報網頁的城市當日資訊.
共有兩份文件:
tianqi.html:利用下拉式選單跳到網頁取得天氣預報資訊,回傳資訊到浮動影格;
<script> <br/><!-- <br/>function go(){ <br/>var url2='http://php.weather.sina.com.cn/search.php?city=' <br/>window.status='搜尋中...'; //隱藏狀態列資訊 <br/>var a=document.form.city.selectedIndex; <br/>var city1=document.form.city.options[a].value; <br/>document.form.url.value =url2+city1; <br/>//window.location=url+city1; <br/>document.form.submit(); <br/>} <br/>--> <br/></script>
-->
-->
-->
-->
300" height="70" name="frame" src="get_tianqi.php" frameborder="1">
get_tianqi.php:取得天氣預報資訊
/* 此程式是從新浪網的天氣網頁http://php.weather.sina.com.cn/search.php?city=取得某個城市的天氣預報*/
ob_start(); //啟動輸出緩衝
function request_url(＄url,＄method='POST') {
＄url = parse_url(＄url); //解析url port,query等
if (!＄url) return "couldn't parse url";
if (!isset(＄url['port'])) { ＄url['port'] = ""; }
if (!isset(＄url['query'])) { ＄url['query'] = ""; }
//連接伺服器
＄fp = fsockopen(＄url['host'], ＄url['port '] ? ＄url['port'] : 80);
if (!＄fp) return "不能連接".＄url['host']."伺服器";
//發送請求
fputs(＄fp, sprintf("＄method %s%s%s HTTP/1.0n", ＄url['path'], ＄url['query'] ? "?" : "", ＄url['query']));
fputs(＄fp, "Host: ＄url[host]n");
fputs(＄fp, "Content-type: application/x-www-form-urlencodedn");
fputs(Connection＄fp, "Connection＄ closenn");
//取得請求後回傳的內容
＄line = fgets(＄fp,1024);
if (!eregi("^HTTP/1.. 200", ＄line)) return; = "";
while(!feof(＄fp)) {
＄line = fgets(＄fp,1024);
＄results .= ＄line
) }
//取得從其它網頁傳送過來的url(帶查詢字符串)
if (!＄_REQUEST['url']) {
echo "請加一個url";
exit;
}else{
＄
exit;
}else{
＄ =＄_REQUEST['url'];
}
＄content=request_url(＄url); //取得請求後的網頁內容
＄start=strpos(＄contentgin,"");
＄len=＄end-＄start;
＄b=substr (＄content,＄start,＄len); //截取指定內容
//從上面的截取段取得城市今日天氣預報的截取段 🎜＄sub_start=strpos(＄b,"
"); 🎜＄sub_end=strpos(＄b,"
"); 🎜＄len2=＄sub_end-＄sub_start; 🎜＄c=substr(＄sub_end-＄sub_start; 🎜＄c=substr(＄sub ); 🎜＄d=split("n",＄c); //去掉換行符 🎜//print_r(＄d); 🎜＄e=""; 🎜foreach (＄d as ＄key=>＄value) { 🎜＄value=strip_tags(＄value); //移除html標記 🎜＄e.=＄值；
if (＄key==2) {
＄e.="
";
}
}
迴聲＄e； >
