Best star rating solution for PHP
<p>I'm wondering what the best and most efficient way to write up the following PHP code would be?</p>

<pre><code>    if ($av == 1) echo '/images/1-star.png';
    if ($av &gt; 1 &amp;&amp; &lt; 2) echo '/images/1-half-star.png';
    if ($av == 2) echo '/images/2-star.png';
    if ($av &gt; 2 &amp;&amp; &lt; 3) echo '/images/2-half-star.png';
</code></pre>

<p>Following this same pattern up to 5 stars.</p>
