微信开发--自动回复图片

先上传图片获得media_id

<?php
    define("AppID","");
    define("AppSecret", "");

    /* 新增一个永久的素材 */
    $c = "1";
    if($c == "1"){
        $url = "http://api.weixin.qq.com/cgi-bin/material/add_material?access_token=".token()."&type=image";
        $josn2 = array("media"=>"@".dirname(__FILE__).".jpg");
        
        $ret = https_request($url,$josn2);
        $row = json_decode($ret);
        echo $row->media_id;
    }

    function https_request($url, $data = null){
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!empty($data)){
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }

    function token(){
        return 'hBCnXdV0pA8cVz-TbIIfljjmZBrO0d8_6vPaK3oeYEOmL89gngWcxi4gzY8_4sMnVrtbUzqT0DyFsF8Kcv6P4KIreJEomNV-GeM9PpAJhPQ';
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".AppID."&secret=".AppSecret;
        $data = json_decode(file_get_contents($url),true);
        if($data['access_token']){
            return $data['access_token'];
        }else{
            echo "Error";
            exit();
        }
    }
?>

2.自动回复的函数

//回复图片信息
    private function return_img($postObj,$media_id){
        $textTpl = "
                    <xml>
                    <ToUserName><![CDATA[%s]]></ToUserName>
                    <FromUserName><![CDATA[%s]]></FromUserName>
                    <CreateTime>%s</CreateTime>
                    <MsgType><![CDATA[image]]></MsgType>
                    <Image>
                    <MediaId><![CDATA[%s]]></MediaId>
                    </Image>
                    </xml>";
        $time = time();
        $resultStr = sprintf($textTpl, $postObj->FromUserName, $postObj->ToUserName, $time, $media_id);
        echo $resultStr;
        exit;
    }