微信公众平台 微信公众平台开发 消息接口 微信天气预报 天气预报接口 中国天气网

原文：http://www.cnblogs.com/txw1958/archive/2013/02/07/weixin-if4-weather-forecast.html 

一、数据接口

百度提供天气预报查询接口API，可以根据经纬度/城市名查询天气情况，我们可以在微信公众平台开发中调用这一接口。

接口

http://api.map.baidu.com/telematics/v3/weather?location=北京&output=json&ak=yourak

接口参数说明

返回结果

返回json格式的数据

{
    "error": 0,
    "status": "success",
    "date": "2014-05-03",
    "results": [
        {
            "currentCity": "北京",
            "weather_data": [
                {
                    "date": "周六(今天, 实时：23℃)",
                    "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/leizhenyu.png",
                    "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/duoyun.png",
                    "weather": "雷阵雨转多云",
                    "wind": "北风5-6级",
                    "temperature": "24 ~ 11℃"
                },
                {
                    "date": "周日",
                    "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/duoyun.png",
                    "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/qing.png",
                    "weather": "多云转晴",
                    "wind": "北风4-5级",
                    "temperature": "19 ~ 8℃"
                },
                {
                    "date": "周一",
                    "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/qing.png",
                    "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/qing.png",
                    "weather": "晴",
                    "wind": "微风",
                    "temperature": "21 ~ 9℃"
                },
                {
                    "date": "周二",
                    "dayPictureUrl": "http://api.map.baidu.com/images/weather/day/duoyun.png",
                    "nightPictureUrl": "http://api.map.baidu.com/images/weather/night/qing.png",
                    "weather": "多云转晴",
                    "wind": "微风",
                    "temperature": "21 ~ 10℃"
                }
            ]
        }
    ]
}

二、开发实现

获取百度天气json数据的代码如下：

<?php

// var_dump(getWeatherInfo("深圳"));

function getWeatherInfo($cityName)
{
    if ($cityName == "" || (strstr($cityName, "+"))){
        return "发送天气+城市，例如'天气深圳'";
    }
    $url = "http://api.map.baidu.com/telematics/v3/weather?location=".urlencode($cityName)."&output=json&ak=ECe3698802b9bf4457f0e01b544eb6aa";
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($ch);
    curl_close($ch);
    $result = json_decode($output, true);
    if ($result["error"] != 0){
        return $result["status"];
    }
    $curHour = (int)date('H',time());
    $weather = $result["results"][0];
    $weatherArray[] = array("Title" =>$weather['currentCity']."天气预报", "Description" =>"", "PicUrl" =>"", "Url" =>"");
    for ($i = 0; $i < count($weather["weather_data"]); $i++) {
        $weatherArray[] = array("Title"=>
            $weather["weather_data"][$i]["date"]."\n".
            $weather["weather_data"][$i]["weather"]." ".
            $weather["weather_data"][$i]["wind"]." ".
            $weather["weather_data"][$i]["temperature"],
        "Description"=>"",
        "PicUrl"=>(($curHour >= 6) && ($curHour < 18))?$weather["weather_data"][$i]["dayPictureUrl"]:$weather["weather_data"][$i]["nightPictureUrl"], "Url"=>"");
    }
    return $weatherArray;
}

?>

在微信中调用的方式如下：

<?php
/*
    方倍工作室
    CopyRight 2013 All Rights Reserved
*/

    private function receiveText($object)
    {
        $keyword = trim($object->Content);

        include("weather2.php");
        $content = getWeatherInfo($keyword);
        // $result = $this->transmitText($object, count($content));
        $result = $this->transmitNews($object, $content);
        return $result;
    }

}

三，效果演示

直接发送城市名称查询天气预报

四、其他方式查询

除了城市名称之外，还可以使用邮编、电话区号等方式进行查询，其实是使用转换的方式，比如010是北京的电话区号，就转去查询北京的天气。

你可以下载 weather.sql.zip ,该数据库是方倍工作室整理收集的主要城市、邮编、区号、拼音、及简拼等城市资料。

开发完成之后，效果如图如示：

使用城市名称、拼音、电话区号查询天气预报

使用邮编、地址位置、语音(声音)查询天气预报

购买天气预报功能源码 点击进入