如何实现PHP微信开发中的图片自动回复功能？

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原文示例：本文字例为大家分享了PHP微信图片回复功能的整体代码，供大家参考，具体内容如下：

php/** * +----------------------------------------------------------------------+ * | PHP微信图片回复功能示例 | * +----------------------------------------------------------------------+ * | define your token | * +----------------------------------------------------------------------+ * | define(TOKEN, weixin); | * +----------------------------------------------------------------------+ * | $wechatObj=new wechatCallbackapiTest(); | * +----------------------------------------------------------------------+ */

本文实例为大家分享了php微信图片回复功能的具体代码，供大家参考，具体内容如下

<?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)){ $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); $fromUsername = $postObj->FromUserName; $toUsername = $postObj->ToUserName; $type = $postObj->MsgType; $customrevent = $postObj->Event; $keyword = trim($postObj->Content); $time = time(); $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[%s]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>0</FuncFlag> </xml>"; if($type=="event" and $customrevent=="subscribe"){ $contentStr = "33333333333"; $msgType = "text"; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; } if($type=="image" ){ $contentStr = "你的图片很棒！"; $msgType = "text"; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; } if(!empty( $keyword )) { $msgType = "text"; if($keyword=="1"){ $contentStr = "333";} if($keyword=="2"){ $contentStr = "444 if($keyword=="3"){ $contentStr = "11";} $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; }else{ echo "Input something..."; } }else { echo ""; exit; } } private 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; } } } ?>

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