首先上传素材（媒体素材）到微信服务器

public function uploadMedia($type="image"){
    $access_token = $this->get_access_token();
    //$url = "https://api.weixin.qq.com/cgi-bin/media/uploadimg?access_token=$access_token";//上传微信推文内容的图片返回url
    $url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=$access_token&type=$type";//普通素材（会过期）要跟普通图文匹配
    //$url = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=$access_token&type=$type";//永久素材（有容量限制，5000张）要跟永久图文匹配
    $filename = $_SERVER['DOCUMENT_ROOT'].'/Public/img/lo.jpg';//要上传的图片素材
    if( !file_exists($filename) ) {
        die('图片不存在');
    }   
    $data=array("media"=>'@'.$filename);
    $res=$this->http_curl( $url ,'post', 'json', $data);//上传
    dump($res);
}

接着新增图文素材（就说群发时候的图文列表，一组一组的），这里的thumb_media_id是上一步返回得到，可选择普通图文和永久图文，链接可以写外链，也可以用微信后台的文章链接

public function uploadTw(){
    $access_token = $this->get_access_token();
    $url = "https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token=$access_token";//普通素材图文
    //$url = "https://api.weixin.qq.com/cgi-bin/material/add_news?access_token=$access_token";//永久素材图文
    $array = array(
        "articles" => array(
            array(
                "thumb_media_id" => "CUrNAWWIjhSBPD3E6YonGLo-SS1NyjJj9qEv3C3sfaM",
                "author"=>"2016-12-04",
                "title"=>"详情",
                "content_source_url"=>"http://www.guitutu.com",
                "content"=>"这里是页面的内容",
                "digest"=>"描述信息",
                "show_cover_pic"=>1
            ),
            array(
                "thumb_media_id" => "CUrNAWWIjhSBPD3E6YonGLo-SS1NyjJj9qEv3C3sfaM",
                "author"=>"测试测试",
                "title"=>"abcd",
                "content_source_url"=>"http://www.guitutu.com",
                "content"=>"这里是页面的内容2",
                "digest"=>"描述信息2",
                "show_cover_pic"=>1
            ),
        )
    );
    $postJson = json_encode($array);
    $res = $this->http_curl($url,'post','json',$postJson);
    dump($res);
}

可以这样来查看后台的历史发文还能取得历史文章的内容和链接，方便调用

public function countmedel($start=0,$count=20){
    $access_token = $this->get_access_token();
    $url = "https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=".$access_token;
    $array = array(
        "type" => "news",
        "offset" => $start,
        "count" => $count
    );
    $postJson = json_encode($array);
    $res = $this->http_curl($url,'post','json',$postJson);
    dump($res);
}

素材添加完毕，接下来可以群发消息了（为了不打扰别人，在测试的时候最好设置一下只发给自己）

public function sendMsgAll(){
    //1、获取全局access_token
    $access_token=$this->get_access_token();
    $url = 'https://api.weixin.qq.com/cgi-bin/message/mass/preview?access_token='.$access_token;
    //2、组装群发接口
    //单文本
    // $array = array(
    //     'touser'=>'oY1k9wWRtQgMk1z_snM2v3N4rykc',//接收消息用户对应该公众号的openid
    //     'text' => array('content'=>'hello'),
    //     'msgtype'=>'text'//消息类型
    // );
    //单图文
    $array = array(
        'touser'=>'oY1k9wWRtQgMk1z_snM2v3N4rykc',//接收消息用户对应该公众号的openid，这里方便测试用，群发给自己
        'mpnews' => array('media_id'=>'CUrNAWWIjhSBPD3E6YonGITDQZmaCSENmkR8NzYBs6g'),//图文素材返回的id
        'msgtype'=>'mpnews'//消息类型
    );
    //3、将数组转成json
    $postJson = json_encode($array);
    //4、调用curl
    $res = $this->http_curl($url,'post','json',$postJson);
    dump($res);
}

如果上面步骤都没问题的话，现在就已经成功群发了一条消息

然后发送模板消息，这个要去微信后台申请模板，通过后需要拿到模板ID，对应好模板的格式（这里我用自己来测试）

public function sendTemplMsg(){
    $access_token = $this->get_access_token();
    $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=$access_token";
    //组装数组
    $array = array(
        "touser"=>"oY1k9wWRtQgMk1z_snM2v3N4rykc",
        "template_id"=>"pY569gYGkV38n-eV3H5-I1NMoeqb-5veeZf4RRGCKF0",
        "url"=>"http://www.guitutu.com",
        "data"=>array(
            "first"=>array(
                "value"=>"尊敬的小简，您尾号为1234的资金账户交易信息。",
                "color"=>"#173177"
            ),
            "stock_Code"=>array(
                "value"=>"11654811",
                "color"=>"#173177"
            ),
            "stock_Name"=>array(
                "value"=>"中国钢铁",
                "color"=>"#173177"
            ),
            "direction"=>array(
                "value"=>"买入",
                "color"=>"#173177"
            ),
            "vol"=>array(
                "value"=>"1000股",
                "color"=>"#173177"
            ),
            "amount"=>array(
                "value"=>"12000元",
                "color"=>"#173177"
            ),
            "time"=>array(
                "value"=>time('Y-m-d H:i:s'),
                "color"=>"#173177"
            ),
            "remark"=>array(
                "value"=>"如有疑问，请拨打海通证券客服热线95553。",
                "color"=>"#173177"
            ),
        )
    );
    $postJson = json_encode($array);
    $res = $this->http_curl($url,'post','json',$postJson);
    dump($res);
}