Create Bitmap

Author: sokil

src/Bitmap

@@ -0,0 +1,18 @@
+<?php
+
+namespace Sokil;
+
+class Bitmap
+{
+    private $_bitmap;
+    
+    public function __construct($bitmap = 0)
+    {
+        $this->_bitmap = (int) $bitmap;
+    }
+    
+    public function isSet($index)
+    {
+        return $this->_bitmap & (1 << $index);
+    }
+}