我生成这样的GUID:
public static function getGUID(){
if (function_exists('com_create_guid')){
return com_create_guid();
}
else {
mt_srand((double)microtime()*10000);//optional for php 4.2.0 and up.
$charid = strtoupper(md5(uniqid(rand(), true)));
$hyphen = chr(45);// "-"
$uuid = substr($charid, 0, 8).$hyphen
.substr($charid, 8, 4).$hyphen
.substr($charid,12, 4).$hyphen
.substr($charid,16, 4).$hyphen
.substr($charid,20,12);
return $uuid;
}
}
但是对于我正在使用的API,我需要获得一个GUID作为char 22.我该怎么做?
它应该是这样的:
051MWsLH7jMaiuTyaRbC80