yle="color: #0000BB">attributeNames</span><span style="color: #007700">()<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$className</span><span style="color: #007700">=</span><span style="color: #0000BB">get_class</span><span style="color: #007700">(</span><span style="color: #0000BB">$this</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;if(!isset(</span><span style="color: #0000BB">self</span><span style="color: #007700">::</span><span style="color: #0000BB">$_na