pan style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$this</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">_d</span><span style="color: #007700">=array();<br />}</span>
</span>
</code></div>
</div>
<p>Removes all items in the stack.</p>


<div class="detailHeader" id="contains-detail">
contains()
<span class="detailHeaderTag">
method
</span>
</div>

<table class="summaryTable">
<tr><td colspan="3">
<div class="signature2">
public boolean <