ass="pre">function_exists()</span></code> check and if the
<cite>Suhosin extension &lt;http://www.hardened-php.net/suhosin/&gt;</cite> is loaded,
checks if it doesn&#8217;t disable the function being checked.</p>
<p>It is useful if you want to check for the availability of functions
such as <code class="docutils literal"><span class="pre">eval()</span></code> and <code class="docutils literal"><span class="pre">exec()</span></code>, which are dangerous and might be
disabled on servers with highly restrictiv