First TwoPlayerTrueSkillCalculator unit test passed

PHPSkills/Teams.php

@@ -0,0 +1,18 @@
+<?php
+namespace Moserware\Skills;
+
+class Teams
+{
+    public static function concat(/*variable arguments*/)
+    {
+        $args = \func_get_args();
+        $result = array();
+
+        foreach ($args as $currentTeam) {
+            $result[] = $currentTeam;
+        }
+
+        return $result;
+    }
+}
+?>