Add get name by value

Datatypes/Enum.php

@@ -102,6 +102,25 @@ abstract class Enum
         return constant('static::' . $name);
     }
 
+    /**
+     * Get enum name by value.
+     *
+     * @param string $value Enum value
+     *
+     * @return mixed
+     *
+     * @throws \Exception Throws this exception if the constant is not defined in the enum class.
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public static function getName(string $value)
+    {
+        $arr = self::getConstants();
+
+        return array_search($value, $arr);
+    }
+
     /**
      * Checking enum name.
      *