《PHP實戰：php采集自中央氣象臺范圍覆蓋全國的天氣預報代碼實例》要點：
本文介紹了PHP實戰：php采集自中央氣象臺范圍覆蓋全國的天氣預報代碼實例，希望對您有用。如果有疑問，可以聯系我們。
本文實例講述了php采集自中央氣象臺范圍覆蓋全國的天氣預報代碼.分享給大家供大家參考.具體分析如下：PHP實例
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,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實例
php天氣預報代碼如下:
PHP實例
$p = $_get['q'];?
$k = 0;?
$encoding = mb_detect_encoding($p);?
if($encoding != "utf-8"){?
??????? $p = mb_convert_encoding($p,"utf-8","gbk");?
}?
$p_arr = array(?
?????? "01" => "北京",?
????? "02" => "上海",?
????? "03" => "天津",?
????? "04" => "重慶",?
????? "05" => "黑龍江",?
????? "06" => "吉林",?
????? "07" => "遼寧",?
????? "08" => "內蒙古",?
????? "09" => "河北",?
????? "10" => "山西",?
????? "11" => "陜西",?
????? "12" => "山東",?
????? "13" => "新疆",?
????? "14" => "西藏",?
????? "15" => "青海",?
????? "16" => "甘肅",?
????? "17" => "寧夏",?
????? "18" => "河南",?
????? "19" => "江蘇",?
????? "20" => "湖北",?
????? "21" => "浙江",?
????? "22" => "安徽",?
????? "23" => "福建",?
????? "24" => "江西",?
????? "25" => "湖南",?
????? "26" => "貴州",?
????? "27" => "四川",?
????? "28" => "廣東",?
????? "29" => "云南",?
????? "30" => "廣西",?
????? "31" => "海南",?
????? "32" => "香港",?
????? "33" => "澳門",?
????? "34" => "臺灣"
);?PHP實例
function find(&$item,$key,$data){?
??????? global $k;?
??????? if(preg_match("/$item/u",$data)){?
?????????? $k = $key;?
??????? }?
}?PHP實例
function get_data_arr($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 $ret;?
}?PHP實例
array_walk($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");PHP實例
希望本文所述對大家的php程序設計有所贊助.PHP實例
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