php WeChat development 01

<?php
/**
  * wechat php test
  */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();
$wechatObj->responseMsg();

class wechatCallbackapiTest
{
	public function valid()
    {
        $echoStr = $_GET["echostr"];

        //valid signature , option
        if($this->checkSignature()){
        	echo $echoStr;
        	exit;
        }
    }

    public function responseMsg()
    {
		//get post data, May be due to the different environments
		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

      	//extract post data
		if (!empty($postStr)){
                /* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
                   the best way is to check the validity of xml by yourself */
                libxml_disable_entity_loader(true);
              	$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
                $keyword = trim($postObj->Content);
                $time = time();
            
             	$type=$postObj->MsgType;
				$customevent=$postObj->Event;
            
                $latitude=$postObj->Location_X;
			    $l
            
                $textTpl = "<xml>
							<ToUserName><![CDATA[%s]]></ToUserName>
							<FromUserName><![CDATA[%s]]></FromUserName>
							<CreateTime>%s</CreateTime>
							<MsgType><![CDATA[%s]]></MsgType>
							<Content><![CDATA[%s]]></Content>
							<FuncFlag>0</FuncFlag>
							</xml>"; 
            //发送位置回复
            if($type=="location"){
                $c
                $msgType = "text";
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                	echo $resultStr;
                }  
            
               
           
            
            //关键字回复
            	if(!empty( $keyword ))
                {
              		$msgType = "text";
                    if($keyword=="1") {                       
                        $contentStr = "感谢关注泛IT!";}
                    if($keyword=="2") {
                        $contentStr = "联系QQ：，欢迎投稿以及提出宝贵意见";}
                    if($keyword=="3") {                       
                        $contentStr = "你的图片不错，还是输入文字吧!";}
                	$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                	echo $resultStr;
                }else{
                	echo "Input something...";
                }
            
             
            //关注公众号后回复
               if($type="event" and $customevent="subscribe"){
                $c
                $msgType = "text";
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                	echo $resultStr;
                }
            
             
             //图片回复
                if($type="image"){
                $c
                $msgType = "text";
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                	echo $resultStr;
                }  

//switch语句优化

<pre name="code" class="php"> /*
            		switch($type)
				{    
                        //处理文本
                        case "text":
                        //关键字回复
                        if(!empty( $keyword ))
                        {
                             //$msgType = "text";
                            if($keyword=="1") {                       
                            $contentStr = "回复1查看使用说明\n回复2查看联系方式\n回复3使用翻译字典\n回复4使用机器人聊天功能";}
                            if($keyword=="2") {
                            $contentStr = "联系QQ：，欢迎投稿以及提出宝贵意见";}
                         }else{                	
							$c }                        
						break; 
                        //处理图片信息
                         case "image":
					$c
                        break;
                        //处理位置信息
                         case "location":
					$c
					break;
                        //处理关注事件
                         case "event":
					if($customevent=="subscribe")
					{$c
					break;
                            default:
							$c						                       
                    }
            			$msgType = "text";
                        $resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$msgType,$contentStr);
						echo $resultStr;                      
                        */

}else { echo ""; exit; }

 }

 private function checkSignature()

{ // you must define TOKEN by yourself if (!defined("TOKEN")) { throw new Exception('TOKEN is not defined!'); } $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN;$tmpArr = array($token, $timestamp, $nonce); // use SORT_STRING rulesort($tmpArr, SORT_STRING);$tmpStr = implode( $tmpArr );$tmpStr = sha1( $tmpStr );if( $tmpStr == $signature ){return true;}else{return false;}}}?>

The above has introduced PHP WeChat Development 01, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.