Add generate_uuid() helper function

This commit is contained in:
Benjamin Renard 2023-03-20 16:41:58 +01:00
parent f3d6b10a9e
commit 4ec5769276
Signed by: bn8
GPG key ID: 3E2E1CE1907115BC

View file

@ -781,3 +781,29 @@ function timestamp2LdapDate($value, $timezone=null, $format=null) {
return dateTime2LdapDate($datetime, $timezone, $format); return dateTime2LdapDate($datetime, $timezone, $format);
return false; return false;
} }
/**
* Generate an UUID
* @return string
*/
function generate_uuid() {
return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
// 16 bits for "time_mid"
mt_rand( 0, 0xffff ),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand( 0, 0x0fff ) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand( 0, 0x3fff ) | 0x8000,
// 48 bits for "node"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
);
}