fixed naming bug + PHP 5.3 issue

Author: webdevsHub

lib/Elastica/Scroll.php

@@ -14,7 +14,7 @@ class Scroll implements \Iterator
     /**
      * @var string
      */
-    public $_expiryTime;
+    public $expiryTime;
 
     /**
      * @var Search

test/lib/Elastica/Test/ScrollTest.php

@@ -22,23 +22,24 @@ public function testForeach()
         foreach ($scroll as $scrollId => $resultSet) {
             $this->assertNotEmpty($scrollId);
 
+            $results = $resultSet->getResults();
             switch (true) {
                 case $count === 1:
                     // hits: 1 - 5
                     $this->assertEquals(5, $resultSet->count());
-                    $this->assertEquals('1', $resultSet->getResults()[0]->getId());
-                    $this->assertEquals('5', $resultSet->getResults()[4]->getId());
+                    $this->assertEquals('1', $results[0]->getId());
+                    $this->assertEquals('5', $results[4]->getId());
                     break;
                 case $count === 2:
                     // hits: 6 - 10
                     $this->assertEquals(5, $resultSet->count());
-                    $this->assertEquals('6', $resultSet->getResults()[0]->getId());
-                    $this->assertEquals('10', $resultSet->getResults()[4]->getId());
+                    $this->assertEquals('6', $results[0]->getId());
+                    $this->assertEquals('10', $results[4]->getId());
                     break;
                 case $count === 3:
                     // hit: 11
                     $this->assertEquals(1, $resultSet->count());
-                    $this->assertEquals('11', $resultSet->getResults()[0]->getId());
+                    $this->assertEquals('11', $results[0]->getId());
                     break;
                 case $count === 4:
                     $this->assertEquals(0, $resultSet->count());