{
"u_no":1,
"p_no": 1,
"p_size": 20
}<?php
$APPKEY = "XXXXXXX";
$params = array(
"u_no"=>1,
"p_no"=>1,
"p_size"=>20
);
ksort($params);
$paramsStr = urldecode(http_build_query($params));
$sign = strtoupper(md5($paramsStr."&".$APPKEY));
?>