如何利用长尾关键词在微信公众号实现精准智能回复？

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原文示例为：本文字例为大家分享了PHP微信公众号开发之关键词回复的整体代码，供大家参考，具体内容如下：

目标：消息回复 + 关键词回复 + utf8编码 + index.php + php/ * * wechat.php * * / //define your token define(TOKEN, T);

简化后内容为：分享PHP微信公号关键词回复代码，示例：

目标：消息回复 + 关键词回复 + utf8编码 + index.php + php/ * * wechat.php * * / //定义token define(TOKEN, T);

本文实例为大家分享了php微信公众号开发之关键词回复的具体代码，供大家参考，具体内容如下

目标:

• 消息回复
• 关键词回复
• utf8编码

index.php

<?php /** * wechat php test */ //define your token define("TOKEN", "jiekou"); $wechatObj = new wechatCallbackapiTest(); $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; $keyword = trim($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(!empty( $keyword )) { $msgType = "text"; switch ($keyword) { case "1"; $contentStr = "公司简介!"; break; case "2"; $contentStr = "最新优惠!"; break; default; $contentStr = "欢迎光临!"; } $resultStr = sprintf($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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