php 天氣預報代碼 采集自中央氣象臺范圍覆蓋全國 天氣預報信息采集自中央氣象臺，信息準確，覆蓋面廣，代碼簡單。返回是json代碼，可以用于客戶端調用，也可以在服務器端處理后顯示，筆者的wordpress天氣預報插件就是使用的這段代碼哦。需要注意的是，這段代碼會在服務器產生緩存文件，需要在當前目錄中新建data文件夾，保證文件夾可寫

php教程 天氣預報代碼 采集自中央氣象臺范圍覆蓋全國
天氣預報信息采集自中央氣象臺，信息準確，覆蓋面廣，代碼簡單。返回是json代碼，可以用于客戶端調用，也可以在服務器端處理后顯示，筆者的wordpress天氣預報插件就是使用的這段代碼哦。需要注意的是，這段代碼會在服務器產生緩存文件，需要在當前目錄中新建data文件夾，保證文件夾可寫

接口demo： http://www.cnphp.info/tianqi

用法： 可以直接調用上面的地址會顯示當地的天氣信息，也可以這樣用

http://www.cnphp.info/tianqi/?q=江蘇省南京市
**/

$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" => "重慶",

"05" => "黑龍江",

"06" => "吉林",

"07" => "遼寧",

"08" => "內蒙古",

"09" => "河北",

"10" => "山西",

"11" => "陜西",

"12" => "山東",

"13" => "新疆",

"14" => "西藏",

"15" => "青海",

"16" => "甘肅",

"17" => "寧夏",

"18" => "河南",

"19" => "江蘇",

"20" => "湖北",

"21" => "浙江",

"22" => "安徽",

"23" => "福建",

"24" => "江西",

"25" => "湖南",

"26" => "貴州",

"27" => "四川",

"28" => "廣東",

"29" => "云南",

"30" => "廣西",

"31" => "海南",

"32" => "香港",

"33" => "澳門",

"34" => "臺灣"

);

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");

天氣預報代碼采集