diff --git a/system/src/Grav/Common/Page/Collection.php b/system/src/Grav/Common/Page/Collection.php
index cc1593c28..861f55b74 100644
--- a/system/src/Grav/Common/Page/Collection.php
+++ b/system/src/Grav/Common/Page/Collection.php
@@ -8,7 +8,7 @@ use Grav\Common\Utils;
 /**
  * Collection of Pages.
  *
- * @author RocketTheme
+ * @author  RocketTheme
  * @license MIT
  */
 class Collection extends Iterator
@@ -23,7 +23,14 @@ class Collection extends Iterator
      */
     protected $params;
 
-    public function __construct($items = array(), array $params = array(), Pages $pages = null)
+    /**
+     * Collection constructor.
+     *
+     * @param array      $items
+     * @param array      $params
+     * @param Pages|null $pages
+     */
+    public function __construct($items = [], array $params = [], Pages $pages = null)
     {
         parent::__construct($items);
 
@@ -31,6 +38,11 @@ class Collection extends Iterator
         $this->pages = $pages ? $pages : Grav::instance()->offsetGet('pages');
     }
 
+    /**
+     * Get the collection params
+     *
+     * @return array
+     */
     public function params()
     {
         return $this->params;
@@ -40,11 +52,13 @@ class Collection extends Iterator
      * Add a single page to a collection
      *
      * @param Page $page
+     *
      * @return $this
      */
     public function addPage(Page $page)
     {
         $this->items[$page->path()] = ['slug' => $page->slug()];
+
         return $this;
     }
 
@@ -63,11 +77,13 @@ class Collection extends Iterator
      * Set parameters to the Collection
      *
      * @param array $params
+     *
      * @return $this
      */
     public function setParams(array $params)
     {
         $this->params = array_merge($this->params, $params);
+
         return $this;
     }
 
@@ -79,6 +95,7 @@ class Collection extends Iterator
     public function current()
     {
         $current = parent::key();
+
         return $this->pages->get($current);
     }
 
@@ -90,13 +107,15 @@ class Collection extends Iterator
     public function key()
     {
         $current = parent::current();
+
         return $current['slug'];
     }
 
     /**
      * Returns the value at specified offset.
      *
-     * @param mixed $offset  The offset to retrieve.
+     * @param mixed $offset The offset to retrieve.
+     *
      * @return mixed         Can return all value types.
      */
     public function offsetGet($offset)
@@ -108,6 +127,7 @@ class Collection extends Iterator
      * Remove item from the list.
      *
      * @param Page|string|null $key
+     *
      * @return $this|void
      * @throws \InvalidArgumentException
      */
@@ -123,6 +143,7 @@ class Collection extends Iterator
         }
 
         parent::remove($key);
+
         return $this;
     }
 
@@ -132,6 +153,7 @@ class Collection extends Iterator
      * @param string $by
      * @param string $dir
      * @param array  $manual
+     *
      * @return $this
      */
     public function order($by, $dir = 'asc', $manual = null)
@@ -145,6 +167,7 @@ class Collection extends Iterator
      * Check to see if this item is the first in the collection.
      *
      * @param  string $path
+     *
      * @return boolean True if item is first.
      */
     public function isFirst($path)
@@ -160,11 +183,12 @@ class Collection extends Iterator
      * Check to see if this item is the last in the collection.
      *
      * @param  string $path
+     *
      * @return boolean True if item is last.
      */
     public function isLast($path)
     {
-        if ($this->items && $path == array_keys($this->items)[count($this->items)-1]) {
+        if ($this->items && $path == array_keys($this->items)[count($this->items) - 1]) {
             return true;
         } else {
             return false;
@@ -174,7 +198,8 @@ class Collection extends Iterator
     /**
      * Gets the previous sibling based on current position.
      *
-     * @param  string  $path
+     * @param  string $path
+     *
      * @return Page  The previous item.
      */
     public function prevSibling($path)
@@ -185,7 +210,8 @@ class Collection extends Iterator
     /**
      * Gets the next sibling based on current position.
      *
-     * @param  string  $path
+     * @param  string $path
+     *
      * @return Page The next item.
      */
     public function nextSibling($path)
@@ -198,6 +224,7 @@ class Collection extends Iterator
      *
      * @param  string  $path
      * @param  integer $direction either -1 or +1
+     *
      * @return Page    The sibling item.
      */
     public function adjacentSibling($path, $direction = 1)
@@ -210,6 +237,7 @@ class Collection extends Iterator
 
             return isset($values[$index]) ? $this->offsetGet($values[$index]) : $this;
         }
+
         return $this;
 
     }
@@ -217,7 +245,8 @@ class Collection extends Iterator
     /**
      * Returns the item in the current position.
      *
-     * @param  string  $path  the path the item
+     * @param  string $path the path the item
+     *
      * @return Page    Item in the array the the current position.
      */
     public function currentPosition($path)
@@ -256,6 +285,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $date_range;
+
         return $this;
     }
 
@@ -275,6 +305,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $visible;
+
         return $this;
     }
 
@@ -294,6 +325,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $visible;
+
         return $this;
     }
 
@@ -313,6 +345,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $modular;
+
         return $this;
     }
 
@@ -332,6 +365,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $modular;
+
         return $this;
     }
 
@@ -351,6 +385,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $published;
+
         return $this;
     }
 
@@ -370,6 +405,7 @@ class Collection extends Iterator
             }
         }
         $this->items = $published;
+
         return $this;
     }
 
@@ -391,6 +427,7 @@ class Collection extends Iterator
         }
 
         $this->items = $routable;
+
         return $this;
     }
 
@@ -410,12 +447,15 @@ class Collection extends Iterator
             }
         }
         $this->items = $routable;
+
         return $this;
     }
 
     /**
      * Creates new collection with only pages of the specified type
      *
+     * @param $type
+     *
      * @return Collection The collection
      */
     public function ofType($type)
@@ -430,12 +470,15 @@ class Collection extends Iterator
         }
 
         $this->items = $items;
+
         return $this;
     }
 
     /**
      * Creates new collection with only pages of one of the specified types
      *
+     * @param $types
+     *
      * @return Collection The collection
      */
     public function ofOneOfTheseTypes($types)
@@ -450,12 +493,15 @@ class Collection extends Iterator
         }
 
         $this->items = $items;
+
         return $this;
     }
 
     /**
      * Creates new collection with only pages of one of the specified access levels
      *
+     * @param $accessLevels
+     *
      * @return Collection The collection
      */
     public function ofOneOfTheseAccessLevels($accessLevels)
@@ -472,7 +518,7 @@ class Collection extends Iterator
 
                     foreach ($page->header()->access as $index => $accessLevel) {
                         if (is_array($accessLevel)) {
-                            foreach($accessLevel as $innerIndex => $innerAccessLevel) {
+                            foreach ($accessLevel as $innerIndex => $innerAccessLevel) {
                                 if (in_array($innerAccessLevel, $accessLevels)) {
                                     $valid = true;
                                 }
@@ -497,11 +543,7 @@ class Collection extends Iterator
         }
 
         $this->items = $items;
+
         return $this;
     }
-
-
-
-
-
 }