PHP调用全国天气预报数据接口查询天气示例(3)

$forecastResult = $weather->getForecast("苏州");
if($forecastResult['error_code'] == 0){  //以下可根据实际业务需求，自行改写
  //////////////////////////////////////////////////////////////////////
  $data = $forecastResult['result'];
  foreach($data as $key => $d){
    echo "日期：".$d['date']." (".$d['sh']."点-".$d['eh']."点) ".$d['weather']." ".$d['temp1']."~".$d["temp2"]."<br>";
  }
}else{  //以下可根据实际业务需求，自行改写
  //////////////////////////////////////////////////////////////////////
  echo $forecastResult['error_code'].":".$forecastResult['reason'];
}

<?php
// +----------------------------------------------------------------------
// | JuhePHP [ NO ZUO NO DIE ]
// +----------------------------------------------------------------------
// | Copyright (c) 2010-2015 http://juhe.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: Juhedata <info@juhe.cn-->
// +----------------------------------------------------------------------
//----------------------------------
// 聚合数据天气预报接口请求类
//----------------------------------
class weather{
  private $appkey = false; //申请的聚合天气预报APPKEY
  private $cityUrl = 'http://v.juhe.cn/weather/citys'; //城市列表API URL
  private $weatherUrl = 'http://v.juhe.cn/weather/index'; //根据城市请求天气API URL
  private $weatherIPUrl = 'http://v.juhe.cn/weather/ip'; //根据IP地址请求天气API URL
  private $weatherGeoUrl = 'http://v.juhe.cn/weather/geo'; //根据GPS坐标获取天气API URL
  private $forecast3hUrl = 'http://v.juhe.cn/weather/forecast3h'; //获取城市天气3小时预报API URL
  public function __construct($appkey){
    $this->appkey = $appkey;
  }
  /**
   * 获取天气预报支持城市列表
   * @return array
   */
  public function getCitys(){
    $params = 'key='.$this->appkey;
    $content = $this->juhecurl($this->cityUrl,$params);
    return $this->_returnArray($content);
  }
  /**
   * 根据城市名称/ID获取详细天气预报
   * @param string $city [城市名称/ID]
   * @return array
   */
  public function getWeather($city){
    $paramsArray = array(
      'key'  => $this->appkey,
      'cityname' => $city,
      'format'  => 2
    );
    $params = http_build_query($paramsArray);
    $content = $this->juhecurl($this->weatherUrl,$params);
    return $this->_returnArray($content);
  }
  /**
   * 根据IP地址获取当地天气预报
   * @param string $ip [IP地址]
   * @return array
   */
  public function getWeatherByIP($ip){
     $paramsArray = array(
      'key'  => $this->appkey,
      'ip' => $ip,
      'format'  => 2
    );
    $params = http_build_query($paramsArray);
    $content = $this->juhecurl($this->weatherIPUrl,$params);
    return $this->_returnArray($content);
  }
  /**
   * 根据GPS坐标获取当地的天气预报
   * @param string $lon [经度]
   * @param string $lat [纬度]
   * @return array
   */
  public function getWeatherByGeo($lon,$lat){
    $paramsArray = array(
      'key'  => $this->appkey,
      'lon' => $lon,
      'lat'  => $lat,
      'format'  => 2
    );
    $params = http_build_query($paramsArray);
    $content = $this->juhecurl($this->weatherGeoUrl,$params);
    return $this->_returnArray($content);
  }
  /**
   * 获取城市三小时预报
   * @param string $city [城市名称]
   * @return array
   */
  public function getForecast($city){
    $paramsArray = array(
      'key'  => $this->appkey,
      'cityname' => $city,
      'format'  => 2
    );
    $params = http_build_query($paramsArray);
    $content = $this->juhecurl($this->forecast3hUrl,$params);
    return $this->_returnArray($content);
  }
  /**
   * 将JSON内容转为数据，并返回
   * @param string $content [内容]
   * @return array
   */
  public function _returnArray($content){
    return json_decode($content,true);
  }
  /**
   * 请求接口返回内容
   * @param string $url [请求的URL地址]
   * @param string $params [请求的参数]
   * @param int $ipost [是否采用POST形式]
   * @return string
   */
  public function juhecurl($url,$params=false,$ispost=0){
    $httpInfo = array();
    $ch = curl_init();
    curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 );
    curl_setopt( $ch, CURLOPT_USERAGENT , 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36' );
    curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 30 );
    curl_setopt( $ch, CURLOPT_TIMEOUT , 30);
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true );
    if( $ispost )
    {
      curl_setopt( $ch , CURLOPT_POST , true );
      curl_setopt( $ch , CURLOPT_POSTFIELDS , $params );
      curl_setopt( $ch , CURLOPT_URL , $url );
    }
    else
    {
      if($params){
        curl_setopt( $ch , CURLOPT_URL , $url.'?'.$params );
      }else{
        curl_setopt( $ch , CURLOPT_URL , $url);
      }
    }
    $response = curl_exec( $ch );
    if ($response === FALSE) {
      //echo "cURL Error: " . curl_error($ch);
      return false;
    }
    $httpCode = curl_getinfo( $ch , CURLINFO_HTTP_CODE );
    $httpInfo = array_merge( $httpInfo , curl_getinfo( $ch ) );
    curl_close( $ch );
    return $response;
  }
}