0000BB">$this</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">groupByToken&nbsp;</span><span style="color: #007700">?&nbsp;</span><span style="color: #0000BB">$last</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]&nbsp;:&nbsp;</span><span style="color: #0000BB">$last</span><span style="color: #007700">[</span><span style="color: #0000BB">2</span><span style="color: #007700">];<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&