用PHP如何发送彩信

<?php
$snoopy = Factory::getBaseClass('Snoopy');
$snoopy->_submit_method='POST';

$submit_url = "发送彩信的接口地址";
$submit_vars['topic'] = '彩信主题'; //彩信主题(140个字节，既70个中文字符)
$zip_stream = urlencode(base64_encode(file_get_contents('demo.zip')));
$submit_vars['zip_stream'] = $zip_stream; //多媒体字段值 Base64编码的信息流
$snoopy->submit($submit_url,$submit_vars);

注：将要发送的内容打包ZIP，然后做base64编码

zip包：下载