Bump PHP reqs

readme.html

@@ -533,7 +533,7 @@ <h2 class='first'>FAQ</h2>
 			<h3 id="requirement">Server requirements</h3>
 			<ol>
 				<li>A server with <strong>mod_rewrite</strong> enabled</li>
-				<li>At least <strong>PHP 4.3</strong></li>
+				<li>At least <strong>PHP 5.2</strong></li>
 				<li>At least <strong>MYSQL 4.1</strong></li>
 				<li><em>Note</em>: YOURLS can also run on <a href="http://www.packetcollision.com/2012/01/27/yourls-and-nginx-an-updated-config/">Nginx</a> and <a href="http://www.ututech.com/2010/10/configuring-yourls-to-work-with-cherokee-web-server/">Cherokee</a></li>
 			</ol>