php微信开发之百度天气预报

本文实例为大家分享了php微信百度天气预报的开发代码，供大家参考，具体内容如下

1.登录百度ak申请：http://lbsyun.baidu.com/apiconsole/key

2.实现天气信息功能

baiduWeather.php 

<?php
/**
* 使用百度天气预报接口获取城市天气信息案例实现
*/
//获取城市天气信息
function getWeatherInfo($cityName){
if($cityName == "" || (strstr($cityName,"+"))){
return "发送城市加天气,例如北京天气";
}
//获取到的ak
$ak = your ak;
//获取到的sk
$sk = your sk;
//调用接口
$url = 'http://api.map.baidu.com/telematics/v3/weather?ak=%s&location=%s&output=%s&sk=%s';
$uri = '/telematics/v3/weather';
$location = $cityName;
$output = 'json';
$querystring_arrays = array(
'ak' => $ak,
'location' => $location,
'output' => $output
);
$querystring = http_build_query($querystring_arrays);
//生成sn
$sn = md5(urlencode($uri.'?'.$querystring.$sk));
$targetUrl = sprintf($url,$ak,urlencode($location),$output,$sn);
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$targetUrl);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
$result = curl_exec($ch);
curl_close($ch);
$result = json_decode($result,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]["data"]."\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;
}

3.实现天气消息事件

<?php
/*
CopyRight 2016 All Rights Reserved
*/
define("TOKEN", "weixin");
/**
* 百度天气预报案例实现
* 实现思路：
* 1.申请百度ak、sk
* 2.使用百度天气预报接口
* 3.实现天气信息功能
* 4.实现事件响应功能
*/
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET['echostr'])) {
$wechatObj->responseMsg();
}else{
$wechatObj->valid();
}
class wechatCallbackapiTest
{
//验证签名
public function valid()
{
$echoStr = $_GET["echostr"];
if($this->checkSignature()){
header('content-type:text');
echo $echoStr;
exit;
}
}
public function checkSignature(){
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr);
$tmpStr = implode($tmpArr);
$tmpStr = sha1($tmpStr);
if($tmpStr == $signature) {
return true;
}else{
return false;
}
}
//响应消息
public function responseMsg()
{
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
if (!empty($postStr)){
$this->logger("R ".$postStr);
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$RX_TYPE = trim($postObj->MsgType);
//消息类型分离
switch ($RX_TYPE)
{
case "event":
$result = $this->receiveEvent($postObj);
break;
case "text":
$result = $this->receiveText($postObj);
break;
default:
$result = "unknown msg type: ".$RX_TYPE;
break;
}
echo $result;
}else {
echo "";
exit;
}
}
//接收事件消息
public function receiveEvent($object)
{
$content = "";
switch ($object->Event)
{
case "subscribe":
$content = "欢迎关注Nicky的公众号 ";
$content .= (!empty($object->EventKey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
break;
case "unsubscribe":
$content = "取消关注";
break;
}
$result = $this->transmitText($object, $content);
return $result;
}
//接收文本消息
public function receiveText($object)
{
$keyword = trim($object->Content);
//自动回复模式
if (strstr($keyword, "天气")){
$city = str_replace('天气','',$keyword);
include("baiduweather.php");
$content = getWeatherInfo($city);
}
$result = $this->transmitNews($object, $content);
return $result;
}
//回复图文消息
public function transmitNews($object, $newsArray)
{
if(!is_array($newsArray)){
return;
}
$itemTpl = " <item>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>
";
$item_str = "";
foreach ($newsArray as $item){
$item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
}
$xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>%s</ArticleCount>
<Articles>
$item_str</Articles>
</xml>";
$result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
return $result;
}
//日志记录
public function logger($log_content)
{
if(isset($_SERVER['HTTP_APPNAME'])){ //SAE
sae_set_display_errors(false);
sae_debug($log_content);
sae_set_display_errors(true);
}else if($_SERVER['REMOTE_ADDR'] != "127.0.0.1"){ //LOCAL
$max_size = 10000;
$log_filename = "log.xml";
if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
file_put_contents($log_filename, date('H:i:s')." ".$log_content."\r\n", FILE_APPEND);
}
}
}
?>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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