How do I round 4.3 to 4.5
<p>Given a value that has 1 decimal place, how do I round that decimal place up a half step? </p>

<p>If I have a value of, say, <code>4.3</code>, how do I round that in PHP to <code>4.5</code>?</p>

<p>Other examples would be:</p>

<pre><code>3.8 &gt;&gt; 4.0
2.1 &gt;&gt; 2.5
0.9 &gt;&gt; 1.0
</code></pre>

<p>Also I should mention that I am running PHP version 5.2.17</p>

<p>Thanks!</p>
