1. 先到微信公众平台注册帐号
http://mp.weixin.qq.com
2. 下载demo
微信公众平台提供了一个十分“朴素”的demo,说明如何调用消息接口的。代码真的很朴素,具体内容可到官网下载。
3. 按照Yii的规则,做一个extension。
这里命名为 weixin,目录结构如下:
▾ extensions/
▾ weixin/
Weixin.php*
Weixin.php代码内容:
<?php /** * WeixinCallback * * @package * @version $id$ * @copyright 1997-2005 The PHP Group * @author davidhhuan@126.com * {@link http://www.sharefamily.net} */ class Weixin { //$_GET参数 public $signature; public $timestamp; public $nonce; public $echostr; // public $token; public $debug = false; public $msg = array(); public $setFlag = false; /** * __construct * * @param mixed $params * @access public * @return void */ public function __construct($params) { foreach ($params as $k1 => $v1) { if (property_exists($this, $k1)) { $this->$k1 = $v1; } } } /** * valid * * @access public * @return void */ public function valid() { //valid signature , option if($this->checkSignature()){ echo $this->echostr; Yii::app()->end(); } } /** * 获得用户发过来的消息(消息内容和消息类型 ) * * @access public * @return void */ public function init() { $postStr = empty($GLOBALS["HTTP_RAW_POST_DATA"]) ? '' : $GLOBALS["HTTP_RAW_POST_DATA"]; if ($this->debug) { $this->log($postStr); } if (!empty($postStr)) { $this->msg = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); } } /** * makeEvent * * @access public * @return void */ public function makeEvent() { } /** * 回复文本消息 * * @param string $text * @access public * @return void */ public function makeText($text='') { $createTime = time(); $funcFlag = $this->setFlag ? 1 : 0; $textTpl = "<xml> <ToUserName><![CDATA[{$this->msg->FromUserName}]]></ToUserName> <FromUserName><![CDATA[{$this->msg->ToUserName}]]></FromUserName> <CreateTime>{$createTime}</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>%s</FuncFlag> </xml>"; return sprintf($textTpl,$text,$funcFlag); } /** * 根据数组参数回复图文消息 * * @param array $newsData * @access public * @return void */ public function makeNews($newsData=array()) { $createTime = time(); $funcFlag = $this->setFlag ? 1 : 0; $newTplHeader = "<xml> <ToUserName><![CDATA[{$this->msg->FromUserName}]]></ToUserName> <FromUserName><![CDATA[{$this->msg->ToUserName}]]></FromUserName> <CreateTime>{$createTime}</CreateTime> <MsgType><![CDATA[news]]></MsgType> <ArticleCount>%s</ArticleCount><Articles>"; $newTplItem = "<item> <Title><![CDATA[%s]]></Title> <Description><![CDATA[%s]]></Description> <PicUrl><![CDATA[%s]]></PicUrl> <Url><![CDATA[%s]]></Url> </item>"; $newTplFoot = "</Articles> <FuncFlag>%s</FuncFlag> </xml>"; $content = ''; $itemsCount = count($newsData['items']); //微信公众平台图文回复的消息一次最多10条 $itemsCount = $itemsCount < 10 ? $itemsCount : 10; if ($itemsCount) { foreach ($newsData['items'] as $key => $item) { if ($key<=9) { $content .= sprintf($newTplItem,$item['title'],$item['description'],$item['picurl'],$item['url']); } } } $header = sprintf($newTplHeader,$itemsCount); $footer = sprintf($newTplFoot,$funcFlag); return $header . $content . $footer; } /** * reply * * @param mixed $data * @access public * @return void */ public function reply($data) { if ($this->debug) { $this->log($data); } echo $data; } /** * checkSignature * * @access private * @return void */ private function checkSignature() { $tmpArr = array($this->token, $this->timestamp, $this->nonce); sort($tmpArr); $tmpStr = implode( $tmpArr ); $tmpStr = sha1( $tmpStr ); if( $tmpStr == $this->signature ){ return true; }else{ return false; } } /** * log * * @access private * @return void */ private function log($log) { if ($this->debug) { file_put_contents(Yii::getPathOfAlias('application').'/runtime/weixin_log.txt', var_export($log, true)."\n\r", FILE_APPEND); } } }
使用方法,这里举例在SiteController里面
/** * actionIndex * * @access public * @return void */ public function actionIndex() { $weixin = new Weixin($_GET); $weixin->token = $this->_weixinToken; //$weixin->debug = true; //网址接入时使用 if (isset($_GET['echostr'])) { $weixin->valid(); } $weixin->init(); $reply = ''; $msgType = empty($weixin->msg->MsgType) ? '' : strtolower($weixin->msg->MsgType); switch ($msgType) { case 'text': //你要处理文本消息代码 break; case 'image': //你要处理图文消息代码 break; case 'location': //你要处理位置消息代码 break; case 'link': //你要处理链接消息代码 break; case 'event': //你要处理事件消息代码 break; default: //无效消息情况下的处理方式 break; } $weixin->reply($reply); }
至此,基本的逻辑都实现了
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Have fun with Yii!