Page MenuHomeDevCentral
Files F7682981

D1610.diff
No OneTemporary
Actions

D1610.diff
View Options

diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -6,3 +6,5 @@
* Ronald Ulysses Swanson aka Wes
https://twitter.com/WesNetmo
+
+* Andrew Moore
diff --git a/src/Strings/UUID.php b/src/Strings/UUID.php
new file mode 100644
--- /dev/null
+++ b/src/Strings/UUID.php
@@ -0,0 +1,39 @@
+<?php
+declare(strict_types=1);
+
+namespace Keruald\OmniTools\Strings;
+
+class UUID {
+
+ /**
+ * @return string A RFC 4122 compliant v4 UUID
+ */
+ public static function UUIDv4 () : string {
+ // Code by Andrew Moore
+ // See http://php.net/manual/en/function.uniqid.php#94959
+ // https://www.ietf.org/rfc/rfc4122.txt
+
+ 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)
+ );
+ }
+
+}
diff --git a/tests/Strings/UUIDTest.php b/tests/Strings/UUIDTest.php
new file mode 100644
--- /dev/null
+++ b/tests/Strings/UUIDTest.php
@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace Keruald\OmniTools\Tests\Strings;
+
+use Keruald\OmniTools\Strings\UUID;
+use Phpunit\Framework\TestCase;
+
+class UUIDTest extends TestCase {
+
+ public function testUUIDv4 () : void {
+ $uuid = UUID::UUIDv4();
+
+ $this->assertEquals(
+ 36, strlen($uuid),
+ "UUID size must be 36 characters."
+ );
+
+ $re = "/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/";
+ $this->assertRegExp($re, $uuid);
+ }
+
+ public function testUUIDv4AreUnique () : void {
+ $this->assertNotEquals(UUID::UUIDv4(), UUID::UUIDv4());
+ }
+
+}

File Metadata

Mime Type
text/plain
Expires
Fri, May 2, 00:08 (9 h, 13 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
2622931
Default Alt Text
D1610.diff (2 KB)

Event Timeline

Nasqueron DevCentral · If it had been much bigger the moon would have had a core of ice. · Powered by Phabricator