25 lines
722 B
PHP
25 lines
722 B
PHP
<?php
|
|
// includes/uuid.php
|
|
|
|
function gen_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 )
|
|
);
|
|
}
|