Fix type of results

Return False if there is not dot, and '' if dot is last symbol. I do not very like (string) substr, but it is very simple code and it works correct.
joomla · Sep 24, 2016 · 47169cb · 47169cb
1 parent 1515999
commit 47169cb
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/libraries/joomla/filesystem/file.php b/libraries/joomla/filesystem/file.php
@@ -28,8 +28,8 @@ class JFile
 	public static function getExt($file)
 	{
 		$dot = strrpos($file, '.');
-		if ($dot === false) { return ''; }
-		return substr($file, $dot + 1);
+		if ($dot === false) { return false; }
+		return (string) substr($file, $dot + 1);
 	}
 
 	/**