Merge pull request #273 from simonrjones/fix/global-functions

Removing \ from global functions

pages/Design-Patterns.md

@@ -82,7 +82,7 @@ class Singleton
     {
         static $instance = null;
         if (null === $instance) {
-            $instance = new static;
+            $instance = new static();
         }
 
         return $instance;
@@ -122,20 +122,20 @@ class SingletonChild extends Singleton
 }
 
 $obj = Singleton::getInstance();
-\var_dump($obj === Singleton::getInstance());             // bool(true)
+var_dump($obj === Singleton::getInstance());             // bool(true)
 
 $anotherObj = SingletonChild::getInstance();
-\var_dump($anotherObj === Singleton::getInstance());      // bool(false)
+var_dump($anotherObj === Singleton::getInstance());      // bool(false)
 
-\var_dump($anotherObj === SingletonChild::getInstance()); // bool(true)
+var_dump($anotherObj === SingletonChild::getInstance()); // bool(true)
 {% endhighlight %}
 
 The code above implements the singleton pattern using a [*static* variable](http://php.net/language.variables.scope#language.variables.scope.static) and the static creation method `getInstance()`.
 Note the following:
 
 * The constructor [`__construct`](http://php.net/language.oop5.decon#object.construct) is declared as protected to prevent creating a new instance outside of the class via the `new` operator.
 * The magic method [`__clone`](http://php.net/language.oop5.cloning#object.clone) is declared as private to prevent cloning of an instance of the class via the [`clone`](http://php.net/language.oop5.cloning) operator.
-* The magic method [`__wakeup`](http://php.net/language.oop5.magic#object.wakeup) is declared as private to prevent unserializing of an instance of the class via the global function [`\unserialize()`](http://php.net/function.unserialize).
+* The magic method [`__wakeup`](http://php.net/language.oop5.magic#object.wakeup) is declared as private to prevent unserializing of an instance of the class via the global function [`unserialize()`](http://php.net/function.unserialize).
 * A new instance is created via [late static binding](http://php.net/language.oop5.late-static-bindings) in the static creation method `getInstance()` with the keyword `static`. This allows the subclassing of the class `Singleton` in the example.
 
 The singleton pattern is useful when we need to make sure we only have a single instance of a class for the entire