Apply StyleCi recommendation

tst/ControllerTest.php

@@ -680,7 +680,7 @@ class ControllerTest extends PHPUnit_Framework_TestCase
     public function testReadInvalidId()
     {
         $_SERVER['QUERY_STRING']          = 'foo';
-        $_GET["foo"]                      = '';
+        $_GET['foo']                      = '';
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
         ob_start();
         new Controller;

tst/RequestTest.php

@@ -135,7 +135,7 @@ class RequestTest extends PHPUnit_Framework_TestCase
         $_SERVER['REQUEST_METHOD']        = 'POST';
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
         $_SERVER['QUERY_STRING']          = $id;
-        $_GET                             = [$id => ''];
+        $_GET                             = array($id => '');
         $_POST['deletetoken']             = 'bar';
         $request                          = new Request;
         $this->assertTrue($request->isJsonApiCall(), 'is JSON Api call');