System: add Str::uuid7()

system/str.php

@@ -544,6 +544,29 @@ public static function uuid()
         return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex(static::bytes(16)), 4));
     }
 
+    /**
+     * Buat string UUID (versi 7).
+     * (Universally Unique Identifier versi 7).
+     *
+     * @return string
+     */
+    public static function uuid7()
+    {
+        $ts = intval(microtime(true) * 1000);
+        return sprintf(
+            '%02x%02x%02x%02x-%02x%02x-%04x-%04x-%012x',
+            ($ts >> 40) & 0xFF,
+            ($ts >> 32) & 0xFF,
+            ($ts >> 24) & 0xFF,
+            ($ts >> 16) & 0xFF,
+            ($ts >> 8) & 0xFF,
+            $ts & 0xFF,
+            static::integers(0, 0x0FFF) | 0x7000,
+            static::integers(0, 0x3FFF) | 0x8000,
+            static::integers(0, 0xFFFFFFFFFFFF),
+        );
+    }
+
     /**
      * Buat string ULID.
      * (Universally Unique Lexicographically Sortable Identifier).

tests/cases/str.test.php

@@ -304,6 +304,8 @@ public function testUuid()
         $this->assertTrue((bool) preg_match('/^[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}$/Di', $uuid));
     }
 
+
+
     public function testUlid()
     {
         $this->assertTrue((bool) preg_match('/[0-9][A-Z]/', Str::ulid()));