title: PHP Checkbox multiple implodes
body: <p>I have multiple checkboxes, lets say;</p>
  
  <pre><code>&lt;input type="checkbox" value='One' /&gt;
  &lt;input type="checkbox" value='Two' /&gt;
  &lt;input type="checkbox" value='Three' /&gt;
  </code></pre>
  
  <p>My php looks like;</p>
  
  <pre><code>echo implode(', ', get_field('checkboxes'));
  </code></pre>
  
  <p>When I check all the boxes my output looks like;</p>
  
  <blockquote>
    <p>One, Two, Three</p>
  </blockquote>
  
  <p>But, I am looking for a way my output looks like;</p>
  
  <blockquote>
    <p>One, Two &amp; Three</p>
  </blockquote>
  
  <p>And when I check only two boxes the output will be;</p>
  
  <blockquote>
    <p>One &amp; Two</p>
  </blockquote>
  
  <p>Can't find this anywhere, please help!</p>
  
  <p>Cheers</p>