Last active
November 1, 2017 20:09
-
-
Save AyrA/233cf44e32f470831d84dc79d71f8b8b to your computer and use it in GitHub Desktop.
PHP UUID Generator
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| //Generates cryptographically safe UUIDv4 (sometimes called GUID) | |
| function guid() | |
| { | |
| $data=random_bytes(16); | |
| assert(strlen($data)===16); | |
| $data[6]=chr(ord($data[6])&0x0f|0x40); //set version to 0100 | |
| $data[8]=chr(ord($data[8])&0x3f|0x80); //set bits 6-7 to 10 | |
| return vsprintf('%s%s-%s-%s-%s-%s%s%s',str_split(bin2hex($data),4)); | |
| } | |
| ?> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment