llections/CStack.php#L49">framework/collections/CStack.php#49</a> (<b><a href="#" class="show">show</a></b>)
<div class="code"><code><span style="color: #000000">
<span style="color: #0000BB"></span><span style="color: #007700">public&nbsp;function&nbsp;</span><span style="color: #0000BB">__construct</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">=</span><span style="color: #0000BB">null</span><span style="color: #007700">)<br />{<br />&nbsp;