diff --git a/system/codeigniter/Common.php b/system/codeigniter/Common.php
index 39005f6..f45c85c 100644
--- a/system/codeigniter/Common.php
+++ b/system/codeigniter/Common.php
@@ -38,18 +38,18 @@
 * @access	public
 * @return	bool
 */
-	function is_php($version = '5.0.0')
+function is_php($version = '5.0.0')
+{
+	static $_is_php;
+
+	if ( ! isset($_is_php[$version]))
 	{
-		static $_is_php;
-
-		if ( ! isset($_is_php[$version]))
-		{
-			$_is_php[$version] = (version_compare(PHP_VERSION, $version) < 0) ? FALSE : TRUE;
-		}
-
-		return $_is_php[$version];
+		$_is_php[$version] = (version_compare(PHP_VERSION, $version) < 0) ? FALSE : TRUE;
 	}
 
+	return $_is_php[$version];
+}
+
 // ------------------------------------------------------------------------
 
 /**