PHP微信开发入门（三）

<?php
class We_Xml {
	/**
	 * 构造图文消息最小为1最大为20
	 * 可以从外部传入图文数组变量
	 * @var array
	 */
	public  $news = array (
			"0" => array (
					"title" => "图文消息0",//图文标题
					"description" => "图文消息0",//图文描述
					"picurl" => "http://www.baidu.com/xxx.jpg",//图片链接
					"url" => "www.baidu.com"//图文消息地址
			),
			"1" => array (
					"title" => "图文消息1",
					"description" => "图文消息1",
					"picurl" => "http://www.baidu.com/xxx.jpg",
					"url" => "www.baidu.com"
			),
			"2" => array (
					"title" => "图文消息2",
					"description" => "图文消息2",
					"picurl" => "http://www.baidu.com/xxx.jpg",
					"url" => "www.baidu.com"
			)
	);
	/**
	 * 回复文本消息
	 * 
	 * @param string $toU 公众号id
	 * @param string $fromU  用户id
	 * @param string $time 时间
	 * @param string $msg 消息内容
	 * @return string
	 */
	public function send_Text($toU, $fromU, $time, $msg) {
		$xml = "<xml>
		<ToUserName><![CDATA[{$toU}]]></ToUserName>
		<FromUserName><![CDATA[{$fromU}]]></FromUserName>
		<CreateTime>{$time}</CreateTime>
		<MsgType><![CDATA[text]]></MsgType>
		<Content><![CDATA[{$msg}]]></Content>
		</xml>";
		return $xml;
	}
	
	/**
	 * 回复图文消息
	 * 
	 * @param string $toU 公众号id
	 * @param string $fromU 用户id
	 * @param string $time 时间
	 * @return string
	 */
	public function send_News($toU, $fromU, $time) {
		$i=0;
		$xml = "<xml>
		          <ToUserName><![CDATA[{$toU}]]></ToUserName>
		          <FromUserName><![CDATA[{$fromU}]]></FromUserName>
		          <CreateTime>{$time}</CreateTime>
		          <MsgType><![CDATA[news]]></MsgType>
		          <ArticleCount>%s</ArticleCount>
		          <Articles>";
		$v="";
		//循环构造图文消息
		foreach ( $this->news as $x ) {
			$c = "<item>
			        <Title><![CDATA[{$x['title']}]]></Title>
			        <Description><![CDATA[{$x['description']}]]></Description>
			        <PicUrl><![CDATA[{$x['picurl']}]]></PicUrl>
			        <Url><![CDATA[{$x['url']}]]></Url>
			     </item>";
			$v = $v . $c;
			$i++;
			continue;
		}
		$v = $v . "\n</Articles>\n</xml>";
		$retrun = $xml . $v;
		//格式化计数
		$retrun=sprintf($retrun,$i);
		return $retrun;
	}
	
	/**
	 * 回复图片消息
	 * 
	 * @param string $toU 公众号id
	 * @param string $fromU 用户id
	 * @param string $time 时间
	 * @param string $imgid 上传媒体id
	 * @return string
	 */
	public function send_Img($toU, $fromU, $time, $imgid) {
		$xml = "<xml>
		          <ToUserName><![CDATA[{$toU}]]></ToUserName>
		          <FromUserName><![CDATA[{$fromU}]]></FromUserName>
		          <CreateTime>{$time}</CreateTime>
	           	  <MsgType><![CDATA[image]]></MsgType>
		          <Image>
		             <MediaId><![CDATA[{$imgid}]]></MediaId>
		          </Image>
		       </xml>";
		return $xml;
	}
	public function send_Video($toU, $fromU, $time, $media_id){
		$xml=<<<XML
		<xml>
          <ToUserName><![CDATA[{$toU}]]></ToUserName>
          <FromUserName><![CDATA[{$fromU}]]></FromUserName>
          <CreateTime>{$time}</CreateTime>
          <MsgType><![CDATA[voice]]></MsgType>
          <Voice>
            <MediaId><![CDATA[{$media_id}]]></MediaId>
          </Voice>
       </xml>
XML;
		return $xml;
	}
	/**
	 * 回复视频消息
	 * 
	 * @param string $toU 公众号id
	 * @param string $fromU用户id
	 * @param string $time 时间
	 * @param string $media_id 上传媒体id
	 * @param string $title 视频标题
	 * @param string $description 视频描述
	 * @return string
	 */
	public function send_Audio($toU, $fromU, $time, $media_id,$title,$description){
		$xml=<<<XML
		<xml>
          <ToUserName><![CDATA[{$toU}]]></ToUserName>
          <FromUserName><![CDATA[{$fromU}]]></FromUserName>
          <CreateTime>{$time}</CreateTime>
          <MsgType><![CDATA[video]]></MsgType>
          <Video>
            <MediaId><![CDATA[{$media_id}]]></MediaId>
            <Title><![CDATA[{$title}]]></Title>
            <Description><![CDATA[{$description}]]></Description>
         </Video> 
       </xml>
XML;
            return $xml;
	}
	/**
	 * 回复音乐消息
	 * 
	 * @param string $toU 公众号id
	 * @param string $fromU 用户id
	 * @param string $time 时间
	 * @param string $media_id 上传媒体id
	 * @param string $title 标题
	 * @param string $description 描述
	 * @param string $url 音乐地址
	 * @param string $HQ_url 高清音乐地址，在WiFi环境下优先调用
	 * @return string
	 */
	public function send_Music($toU, $fromU, $time, $media_id,$title,$description,$url,$HQ_url=null){
		//如果未添加$HQ_url则使他与$url相同
		if($HQ_url=null){
			$HQ_url=$url;
		}
		$xml=<<<XML
		<xml>
           <ToUserName><![CDATA[{$toU}]]></ToUserName>
           <FromUserName><![CDATA[{$fromU}]]></FromUserName>
           <CreateTime>{$time}</CreateTime>
           <MsgType><![CDATA[music]]></MsgType>
           <Music>
             <Title><![CDATA[{$title}]]></Title>
             <Description><![CDATA[{$description}]]></Description>
             <MusicUrl><![CDATA[{$url}]]></MusicUrl>
             <HQMusicUrl><![CDATA[{$HQ_url}]]></HQMusicUrl>
             <ThumbMediaId><![CDATA[{$media_id}]]></ThumbMediaId>
           </Music>
       </xml>
XML;
             return $xml;
	}
	/**
	 * 回复语音消息
	 * 
	 * @param string $toUser
	 * @param string $fromUser
	 * @param string $time
	 * @param string $media_id
	 * @return string
	 */
	public function send_voice($toUser,$fromUser,$time,$media_id){
		
		$xml=<<<XML
	<xml>
      <ToUserName><![CDATA[{$toUser}]]></ToUserName>
      <FromUserName><![CDATA[{$fromUser}]]></FromUserName>
      <CreateTime>{$time}</CreateTime>
      <MsgType><![CDATA[voice]]></MsgType>
      <Voice>
        <MediaId><![CDATA[{$media_id}]]></MediaId>
      </Voice>
    </xml>	
XML;
		return $xml;
	}
}
?>