Syntax error in PHP 5.2
<p>In the php 5.3 I can use class name as variable and I can call static variable.</p>

<pre><code>$class_name = 'Test';
$class_name::$static_var;
</code></pre>

<p>How to call it in the php 5.2 version?</p>

<pre><code>Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in ...
</code></pre>
