php实现基于微信公众平台开发SDK(demo)扩展的方法

本文实例讲述了PHP实现基于微信公众平台开发SDK(demo)扩展的方法。分享给大家供大家参考。具体分析如下：

该扩展基于官方的微信公众平台SDK,这里只做了简单地封装,实现了一些基本的功能(如天气查询,翻译,自动聊天机器人,自定义菜单接口)仅供学习之用.代码如下:

代码如下:

responseMsg(); class wechatCallbackapiTest { //签名验证公共接口 public function valid() { $echoStr = $_GET["echostr"]; if($this->checkSignature()){ echo $echoStr; exit; } }

//主入口处理函数
public function responseMsg()
{
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
if (!emptyempty($postStr)){
$postObj = simplexml_load_string($postStr,'SimpleXMLElement',LIBXML_NOCDATA);
$msgType=trim($postObj->MsgType);

switch($msgType){
case 'text':
$resultStr=$this->handleText($postObj);
break;
case 'event':
$resultStr=$this->handleEvent($postObj);
break;
default:
$resultStr=$this->handleDefault($postObj);
break;
}
echo $resultStr;

}else {
echo "Error";
exit;
}
}

//处理文本消息
private function handleText($obj){
$keyword=trim($obj->Content);
if(preg_match('/天气/',$keyword)){
$contentStr=$this->handleWeather($obj);
}elseif(preg_match('/翻译/',$keyword)){
$contentStr=$this->handleTranslation($obj);
}else{
$contentStr=$this->handleChat($obj);
}
return $this->handleStr($obj,$contentStr);
}

//处理天气
private function handleWeather($obj){
$keyword=mb_substr($obj->Content,-2,2,'utf-8');
$zone=mb_substr($obj->Content,'utf-8');
if($keyword=='天气' && !emptyempty($zone)){
$zoneArr=json_decode(file_get_contents('http://api.k780.com:88/?app=weather.city&format=json'),true);
$zoneArr=$zoneArr['result'];
$cityId='';
foreach($zoneArr as $value){
if($zone==$value['citynm']){
$cityId=$value['weaid'];
break;
}
}

if(!emptyempty($cityId)){
$data=file_get_contents("http://api.k780.com:88/?app=weather.today&weaid=$cityId&appkey=10638&sign=3736578f099375665f9f141a6326b757&format=json");
$data=json_decode($data);
$contentStr="今天是:".$data->result->days.",".$data->result-> week.",".$data->result->citynm."天气:".$data->result->weather."n温度:".$data->result->temperature.",
".$data->result->wind_direction.",".$data->result->wind_power.",最低温度:".$data->result->temp_low.",最高温度:".$data->result->temp_high;
}else{
$contentStr='找不到输入的城市!';
}
}else{
$contentStr='输入的查询格式不正确!';
}
return $contentStr;
}

//处理翻译
private function handleTranslation($obj){
$keyword=mb_substr($obj->Content,'utf-8');
$words=mb_substr($obj->Content,220,'utf-8');
if($keyword=='翻译' && !emptyempty($words)){
$data=file_get_contents('http://fanyi.youdao.com/openapi.do?keyfrom=zfsblog&key=364295447&type=data&doctype=json&version=1.1&q='.urlencode($words));
$data=json_decode($data,true);

switch($data['errorCode']){
case '0':
$contentStr=$data['translation'][0];
break;
case '20':
$contentStr='要翻译的文本过长';
break;
case '30':
$contentStr='无法进行有效的翻译';
break;
case '40':
$contentStr='不支持的语言类型';
break;
case '50':
$contentStr='无效的key';
break;
default:
$contentStr='Error';
break;
}
}else{
$contentStr='输入的翻译格式不正确!';
}
return $contentStr;
}

//处理聊天信息
private function handleChat($obj){
$keywords=$obj->Content;
$curlPost=array("chat"=>$keywords);
$ch = curl_init();//初始化curl
curl_setopt($ch,CURLOPT_URL,'http://www.xiaojo.com/bot/chata.PHP');//抓取指定网页
curl_setopt($ch,CURLOPT_HEADER,0);//设置header
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_POST,1);//post提交方式
curl_setopt($ch,CURLOPT_POSTFIELDS,$curlPost);
$data = curl_exec($ch);//运行curl
curl_close($ch);

if(!emptyempty($data)){
$contentStr=$data;
}else{
$ran=rand(1,5);

switch($ran){
case 1:
$contentStr= "小九今天累了，明天再陪你聊天吧";
break;
case 2:
$contentStr= "小九睡觉喽~~";
break;
case 3:
$contentStr= "呼呼呼呼";
break;
case 4:
$contentStr= "你话好多啊，不跟你聊了";
break;
case 5:
$contentStr= "你话好多啊，不跟你聊了";
break;
}
}
return $contentStr;
}

//创建自定义菜单
public function createMenu($data,$token){
$ch = curl_init();
curl_setopt($ch,"https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$token);
curl_setopt($ch,CURLOPT_CUSTomrEQUEST,"POST");
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,CURLOPT_USERAGENT,'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_AUTOREFERER,$data);
curl_setopt($ch,true);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}

//查询自定义菜单
function getMenu($token){
$url="https://api.weixin.qq.com/cgi-bin/menu/get?access_token=$token";
$ch = curl_init($url);
curl_setopt($ch,true) ; //获取数据返回
curl_setopt($ch,CURLOPT_BINARYTRANSFER,true) ; //在启用 CURLOPT_RETURNTRANSFER 时候将获取数据返回
curl_setopt($ch,false);
return $output = curl_exec($ch);
}

//删除自定义菜单
public function deleteMenu($token){
$url="https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=".$token;
$ch = curl_init();
curl_setopt($ch,$url);
curl_setopt($ch,false);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}

//处理事件消息 private function handleEvent($obj){ $content=''; switch($obj->Event){ case 'subscribe': $content.="welcome-欢迎关注该公众号号!"; break; case 'unsubscribe': $content.="感谢您一直以来对该公众号的关注,再见!"; break; default: $content.=""; break; } return $this->handleStr($obj,$content); }

//处理回复消息字符串
private function handleStr($obj,$content='',$flag=0){
$textTpl = "";
return sprintf($textTpl,$obj->FromUserName,$obj->ToUserName,time(),$content,$flag);
}

//签名验证函数
private function checkSignature()
{
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token,$timestamp,$nonce);
sort($tmpArr,SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}

希望本文所述对大家的PHP程序设计有所帮助。