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密
$String = md5($String);
//签名步骤四：所有字符转为大写
$result = strtoupper($String);
return $result;
}
function formatParameters($paraMap, $urlencode)
{
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if($k=="sign"){
continue;
}
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
$reqPar;
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
/**
* 得到签名
* @param object $obj
* @param string $api_key
* @return string
*/
function getSign($obj, $api_key)
{
foreach ($obj as $k => $v)
{
$Parameters[strtolower($k)] = $v;
}
//签名步骤一：按字典序排序参数
ksort($Parameters);
$String = $this->formatBizQueryParaMap($Parameters, false);
//签名步骤二：在string后加入KEY
$String = $String."&key=".$api_key;
//签名步骤三：MD5加密
$result = strtoupper(md5($String));
return $result;
}
/**
* 获取指定长度的随机字符串
* @param int $length
* @return Ambigous <NULL, string>
*/
function getRandChar($length){
$str = null;
$strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
$max = strlen($strPol)-1;
for($i=0;$i<$length;$i++){
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