php采集自中央气象台范围覆盖全国的天气预报代码实例


            本文实例讲述了php采集自中央气象台范围覆盖全国的天气预报代码。分享给大家供大家参考。具体分析如下：

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:

复制代码 代码如下:/* 

作者：    freemouse 

主页：    www.cnphp.info 

接口demo： http://www.cnphp.info/tianqi 

用法： 可以直接调用上面的地址会显示当地的天气信息，也可以这样用 

http://www.cnphp.info/tianqi/?q=江苏省南京市 

**/

$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" 

); 

function find(&$item,$key,$data){  

        global $k;  

        if(preg_match("/$item/u",$data)){  

           $k = $key;  

        }  

} 

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;  

} 

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");

希望本文所述对大家的php程序设计有所帮助。