Editing Name binding (section)

==Late static==
Late static binding is a variant of binding somewhere between static and dynamic binding.  Consider the following [[PHP]] example:
<syntaxhighlight lang="php">
class A
{
    public static $word = "hello";
    public static function hello() { print self::$word; }
}

class B extends A
{
    public static $word = "bye";
}

B::hello();
</syntaxhighlight>

In this example, the PHP interpreter binds the keyword <code>self</code> inside <code>A::hello()</code> to class <code>A</code>, and so the call to <code>B::hello()</code> produces the string "hello". If the semantics of <code>self::$word</code> had been based on late static binding, then the result would have been "bye".

Beginning with PHP version 5.3, late static binding is supported.<ref>{{cite web|url=http://us2.php.net/manual/en/language.oop5.late-static-bindings.php|title=Late Static Bindings|access-date=July 3, 2013}}</ref>  Specifically, if <code>self::$word</code> in the above were changed to <code>static::$word</code> as shown in the following block, where the keyword <code>static</code> would only be bound at runtime, then the result of the call to <code>B::hello()</code> would be "bye":

<syntaxhighlight lang="php">
class A
{
    public static $word = "hello";
    public static function hello() { print static::$word; }
}

class B extends A
{
    public static $word = "bye";
}

B::hello();
</syntaxhighlight>