How to get the PHP Version?
<p>Is there a way to check the version of PHP that executed a particular script from within that script? So for example, the following snippet</p>

<pre><code>$version = way_to_get_version();
print $version;
</code></pre>

<p>would print 5.3.0 on one machine, and 5.3.1 on another machine.</p>
