de>):</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">input</span><span class="o">-&gt;</span><span class="na">server</span><span class="p">(</span><span class="s1">&#39;some_data&#39;</span><span class="p">);</span>
</pre></div>
</div>
<p>To return an array of multiple <code class="docutils literal"><span class="pre">$_SERVER</span></code> values, pass all the required keys
as an array.</p>
<div class="highligh