天气预报信息采集自中央气象台,信息准确,覆盖面广,代码简单,返回是json代码,可以用于客户端调用,也可以在服务器端处理后显示,笔者的wordpress天气预报插件就是使用的这段代码,需要注意的是,这段代码会在服务器产生缓存文件,需要在当前目录中新建data文件夹,保证文件夹可写.
php 天气预报代码如下:
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- $p = $_get['q'];
- $k = 0;
- $encoding = mb_detect_encoding($p);
- if($encoding != "utf-8"){
- $p = mb_convert_encoding($p,"utf-8","gbk");
- }
- $p_arr = array(
- "01" => "北京",
- "02" => "上海",
- "03" => "天津",
- "04" => "重庆",
- "05" => "黑龙江",
- "06" => "吉林",
- "07" => "辽宁",
- "08" => "内蒙古",
- "09" => "河北",
- "10" => "山西",
- "11" => "陕西",
- "12" => "山东",
- "13" => "新疆",
- "14" => "西藏",
- "15" => "青海",
- "16" => "甘肃",
- "17" => "宁夏",
- "18" => "河南",
- "19" => "江苏",
- "20" => "湖北",
- "21" => "浙江",
- "22" => "安徽",
- "23" => "福建",
- "24" => "江西",
- "25" => "湖南",
- "26" => "贵州",
- "27" => "四川",
- "28" => "广东",
- "29" => "云南",
- "30" => "广西",
- "31" => "海南",
- "32" => "香港",
- "33" => "澳门",
- "34" => "台湾"
- );
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- function find(&$item,$key,$data){
- global $k;
- if(preg_match("/$item/u",$data)){
- $k = $key;
- }
- }
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- function get_data_arr($key){
- if(!file_exists("./data/city{$key}.xml")){
- $c =file_get_contents( "http://m.weather.com.cn/data5/city{$key}.xml" );
- file_put_contents("./data/city{$key}.xml",$c);
- }
- else{
- $c = file_get_contents("./data/city{$key}.xml");
- }
- $arr = explode(",",$c);
- foreach($arr as $v){
- $data = explode("|",$v);
- $ret[$data[0]] = $data[1];
- }
- return $ret;
- }
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- array_walk($p_arr,'find',$p);
- array_walk(get_data_arr($k),'find',$p);
- array_walk(get_data_arr($k),'find',$p);
- $ccode = get_data_arr($k);
- echo file_get_contents("http://m.weather.com.cn/data/{$ccode[$k]}.html");
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