diff --git a/Structural/Flyweight/CharacterFlyweight.php b/Structural/Flyweight/CharacterFlyweight.php
index d10cd03..d0c6399 100644
--- a/Structural/Flyweight/CharacterFlyweight.php
+++ b/Structural/Flyweight/CharacterFlyweight.php
@@ -16,7 +16,6 @@ class CharacterFlyweight implements FlyweightInterface
     private $name;
 
     /**
-     * Constructor.
      * @param string $name
      */
     public function __construct($name)
@@ -27,6 +26,7 @@ class CharacterFlyweight implements FlyweightInterface
     /**
      * Clients supply the context-dependent information that the flyweight needs to draw itself
      * For flyweights representing characters, extrinsic state usually contains e.g. the font
+     *
      * @param string $font
      */
     public function draw($font)
diff --git a/Structural/Flyweight/FlyweightFactory.php b/Structural/Flyweight/FlyweightFactory.php
index a15a07b..c709363 100644
--- a/Structural/Flyweight/FlyweightFactory.php
+++ b/Structural/Flyweight/FlyweightFactory.php
@@ -12,7 +12,7 @@ class FlyweightFactory
 {
     /**
      * Associative store for flyweight objects
-     * 
+     *
      * @var Array
      */
     private $pool = array();
@@ -28,6 +28,7 @@ class FlyweightFactory
         if (!array_key_exists($name, $this->pool)) {
             $this->pool[$name] = new CharacterFlyweight($name);
         }
+        
         return $this->pool[$name];
     }
 
@@ -36,6 +37,6 @@ class FlyweightFactory
      */
     public function totalNumber()
     {
-        return sizeof($this->pool);
+        return count($this->pool);
     }
 }
diff --git a/Structural/Flyweight/FlyweightInterface.php b/Structural/Flyweight/FlyweightInterface.php
index e48bb8f..023419c 100644
--- a/Structural/Flyweight/FlyweightInterface.php
+++ b/Structural/Flyweight/FlyweightInterface.php
@@ -7,5 +7,8 @@ namespace DesignPatterns\Structural\Flyweight;
  */
 interface FlyweightInterface
 {
+    /**
+     * @param string $extrinsicState
+     */
     public function draw($extrinsicState);
 }