refactored error and file classes.

system/error.php

@@ -31,7 +31,7 @@ class Error {
 	 */
 	public static function handle($e)
 	{
-		// Clean the output buffer. We don't want any rendered views or text sent to the browser.
+		// Clean the output buffer so no previously rendered views or text is sent to the browser.
 		if (ob_get_level() > 0)
 		{
 			ob_clean();
@@ -40,7 +40,8 @@ class Error {
 		// Get the error severity in human readable format.
 		$severity = (array_key_exists($e->getCode(), static::$levels)) ? static::$levels[$e->getCode()] : $e->getCode();
 
-		// Get the error file. Views require special handling since view errors occur in eval'd code.
+		// Get the file in which the error occured.
+		// Views require special handling since view errors occur in eval'd code.
 		if (strpos($e->getFile(), 'view.php') !== false and strpos($e->getFile(), "eval()'d code") !== false)
 		{
 			$file = APP_PATH.'views/'.View::$last.EXT;

system/file.php

@@ -125,11 +125,6 @@ class File {
 	 */
 	public static function upload($key, $path)
 	{
-		if ( ! array_key_exists($key, $_FILES))
-		{
-			return false;
-		}
-
-		return move_uploaded_file($_FILES[$key]['tmp_name'], $path);
+		return array_key_exists($key, $_FILES) ? move_uploaded_file($_FILES[$key]['tmp_name'], $path) : false;
 	}
 }
\ No newline at end of file