Feat: list of default measurements via class constants

src/UnitConverter/Measure.php

@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * This file is part of the jordanbrauer/unit-converter PHP package.
+ *
+ * @copyright 2017 Jordan Brauer <[email protected]>
+ * @license MIT
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace UnitConverter;
+
+/**
+ * A static class containing constants that define the available
+ * default types of measurement.
+ *
+ * @version 1.0.0
+ * @since 1.0.0
+ * @author Jordan Brauer <[email protected]>
+ */
+class Measure
+{
+  const LENGTH = "length";
+
+  const AREA = "area";
+
+  const VOLUME = "volume";
+
+  const WEIGHT = "weight";
+
+  const SPEED = "speed";
+
+  const ROTATION = "rotation";
+
+  const TEMPERATURE = "temperature";
+
+  const PRESSURE = "pressure";
+
+  const TIME = "time";
+
+  const ENERGY = "energy";
+}