How to get cell value by cell coordinate?
<p>The below works fine to <strong>set</strong> value:</p>

<pre><code>$this-&gt;objPHPExcel-&gt;getActiveSheet()-&gt;getCell('A1')-&gt;setValue('hello world');
</code></pre>

<p>But why the below returns null?</p>

<pre><code>$this-&gt;objPHPExcel-&gt;getActiveSheet()-&gt;getCell('A1')-&gt;getValue();
</code></pre>

<p>I know this works fine:</p>

<pre><code>return $this-&gt;objPHPExcel-&gt;getActiveSheet()-&gt;getCellByColumnAndRow(0, 1)-&gt;getValue();
</code></pre>

<p>But I want a way to get value by cell coordinate, as getValue of "A1" instead of using (0,1)</p>