基于ThinkPHP5框架做的微信公众号开发（001）

<?php namespace app\index\controller; /** * wechat php test */ //define your token define("TOKEN", "sudons"); class Wechat { public function index(){ if (isset($_GET['echostr'])) { $this->valid(); }else{ $this->responseMsg(); } } public function valid() { $echoStr = $_GET["echostr"]; //valid signature , option if($this->checkSignature() && $echoStr){ echo $echoStr; exit; } } private function checkSignature() { // you must define TOKEN by yourself if (!defined("TOKEN")) { throw new Exception('TOKEN is not defined!'); } //获取微信提交的参数 $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; //微信提交参数放入数组 $tmpArr = array($token, $timestamp, $nonce); // use SORT_STRING rule字典序排序 sort($tmpArr, SORT_STRING); //拼接字符串 $tmpStr = implode( $tmpArr ); //加密 $tmpStr = sha1( $tmpStr ); //检验signature if( $tmpStr == $signature){ return true; }else{ return false; } } 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); $RX_TYPE = trim($postObj->MsgType); switch ($RX_TYPE) { case "text": $resultStr = $this->receiveText($postObj); break; case "image": $resultStr = $this->receiveImage($postObj); break; case "location": $resultStr = $this->receiveLocation($postObj); break; case "voice": $resultStr = $this->receiveVoice($postObj); break; case "video": $resultStr = $this->receiveVideo($postObj); break; case "link": $resultStr = $this->receiveLink($postObj); break; case "event": $resultStr = $this->receiveEvent($postObj); break; default: $resultStr = "unknow msg type: ".$RX_TYPE; break; } echo $resultStr; }else { echo ""; exit; } } //统一用文本回复 private function transmitText($object, $content, $flag = 0) { $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>%d</FuncFlag> </xml>"; $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content, $flag); return $resultStr; } //1.事件消息 private function receiveEvent($object) { $contentStr = ""; switch ($object->Event) { case "subscribe": $contentStr = "欢迎关注塞雅创想"; break; case "unsubscribe": $contentStr = ""; break; case "CLICK": switch ($object->EventKey) { default: $contentStr = "你点击了菜单: ".$object->EventKey; break; } break; default: $contentStr = "receive a new event: ".$object->Event; break; } $resultStr = $this->transmitText($object, $contentStr); return $resultStr; } //2.文本消息 private function receiveText($object) { $funcFlag = 0; $contentStr = "你发送的是文本，内容为：".$object->Content; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } //3.图片消息 private function receiveImage($object) { $funcFlag = 0; $contentStr = "你发送的是图片，地址为：".$object->PicUrl; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } //4.语音消息 private function receiveVoice($object) { $funcFlag = 0; $contentStr = "你发送的是语音，媒体ID为：".$object->MediaId; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } //5.视频消息 private function receiveVideo($object) { $funcFlag = 0; $contentStr = "你发送的是视频，媒体ID为：".$object->MediaId; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } //6.位置消息 private function receiveLocation($object) { $funcFlag = 0; $contentStr = "你发送的是位置，纬度为：".$object->Location_X."；经度为：".$object->Location_Y."；缩放级别为：".$object->Scale."；位置为：".$object->Label; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } //7.链接消息 private function receiveLink($object) { $funcFlag = 0; $contentStr = "你发送的是链接，标题为：".$object->Title."；内容为：".$object->Description."；链接地址为：".$object->Url; $resultStr = $this->transmitText($object, $contentStr, $funcFlag); return $resultStr; } } ?>