/* 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");