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<?php |
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/* |
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* Copyright (C) 2015 Thamtech, LLC |
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* |
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* This software is copyrighted. No part of this work may be |
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* reproduced in whole or in part in any manner without the |
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* permission of the Copyright owner, unless specifically authorized |
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* by a license obtained from the Copyright owner. |
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**/ |
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namespace thamtech\uuid\helpers; |
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use Ramsey\Uuid\Uuid; |
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/** |
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* UuidHelper provides UUID functions that you can use in your application. |
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* |
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* @author Tyler Ham <[email protected]> |
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*/ |
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class UuidHelper |
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{ |
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/** |
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* Generate a UUID string (version 4 by default). |
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* |
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* @return string canonical format UUID, i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a |
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*/ |
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public static function uuid() |
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{ |
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return Uuid::uuid4()->toString(); |
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} |
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/** |
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* Checks if the given string looks like a UUID in the canonical format, |
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* i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a. This check is case |
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* insensitive. |
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* |
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* @param string $uuid UUID String to check |
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* |
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* @return bool whether or not it matches the pattern. |
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*/ |
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public static function isValid($uuid) |
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{ |
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$validator = new \thamtech\uuid\validators\UuidValidator(); |
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return $validator->validate($uuid, $error); |
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} |
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/** |
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* Converts a UUID string into a compact binary string. |
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* |
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* @param string $uuid UUID in canonical format, i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a |
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* |
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* @return string compact 16-byte binary representation of the UUID. |
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*/ |
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public static function uuid2bin($uuid) |
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{ |
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// normalize to uppercase, remove hyphens |
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$hex = str_replace('-', '', strtoupper($uuid)); |
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// H for big-endian to behave similarly to MySQL's |
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// HEX() and UNHEX() functions. |
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$bin = pack('H*', $hex); |
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return $bin; |
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} |
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/** |
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* Converts a compact 16-byte binary representation of the UUID into |
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* a string in canonical format, i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a. |
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* |
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* @param string $uuidBin compact 16-byte binary representation of the UUID. |
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* |
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* @return string UUID in canonical format, i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a |
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*/ |
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public static function bin2uuid($uuidBin) |
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{ |
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// H for big-endian to behave similarly to MySQL's |
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// HEX() and UNHEX() functions. |
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$hexArray = unpack('H*', $uuidBin); |
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$hex = strtolower(array_shift($hexArray)); |
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// break into components |
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$components = [ |
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substr($hex, 0, 8), |
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substr($hex, 8, 4), |
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substr($hex, 12, 4), |
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substr($hex, 16, 4), |
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substr($hex, 20, 12), |
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]; |
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return implode('-', $components); |
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} |
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} |
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thamtech /
yii2-uuid
