Added Class

Author: Lewiscowles1986

src/ulid.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace lewiscowles\core;
+
+final class Ulid {
+    const ENCODING = "0123456789ABCDEFGHJKMNPQRSTVWXYZ";
+    const ENCODING_LENGTH = 32;
+    
+    public function get()
+    {
+        return $this->encodeTime($this->getTime(), 10) . $this->encodeRandom(16);
+    }
+    
+    private function encodeTime(int $time, int $length) : string
+    {
+        $out = '';
+        while($length > 0) {
+            $mod = intval($time % self::ENCODING_LENGTH);
+            
+            $out = self::ENCODING[$mod] . $out;
+            $time = ($time - $mod) / self::ENCODING_LENGTH;
+            $length--;
+        }
+        return $out;
+    }
+    
+    private function encodeRandom(int $length) : string
+    {
+        $out = '';
+        while($length > 0) {
+            $rand = intval(floor(self::ENCODING_LENGTH * $this->getRand()));
+            $out = self::ENCODING[$rand] . $out;
+            $length--;
+        }
+        return $out;
+    }
+    
+    private function getRand() : float
+    {
+        return lcg_value();
+    }
+    
+    private function getTime() : int
+    {
+        return time();
+    }
+}