First TwoPlayerTrueSkillCalculator unit test passed

PHPSkills/RankSorter.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Moserware\Skills;
+
+/// <summary>
+/// Helper class to sort ranks in non-decreasing order.
+/// </summary>
+class RankSorter
+{
+    /// <summary>
+    /// Performs an in-place sort of the <paramref name="items"/> in according to the <paramref name="ranks"/> in non-decreasing order.
+    /// </summary>
+    /// <typeparam name="T">The types of items to sort.</typeparam>
+    /// <param name="items">The items to sort according to the order specified by <paramref name="ranks"/>.</param>
+    /// <param name="ranks">The ranks for each item where 1 is first place.</param>
+    public static function sort(array &$teams, array &$teamRanks)
+    {        
+        array_multisort($teamRanks, $teams);
+        return $teams;
+    }
+}
+
+?>