Merge branch 'develop' into 'feature/user-guide-cleanup'

3 files changed, 3 insertions, 4 deletions

diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
index 24cd53568..b61b2d5cf 100644
--- a/system/helpers/captcha_helper.php
+++ b/system/helpers/captcha_helper.php
@@ -82,7 +82,7 @@ if ( ! function_exists('create_captcha'))
 		}
 
 		if ($img_path === '' OR $img_url === ''
-			OR ! @is_dir($img_path) OR ! is_writeable($img_path)
+			OR ! @is_dir($img_path) OR ! is_really_writable($img_path)
 			OR ! extension_loaded('gd'))
 		{
 			return FALSE;
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 4fe6a0e88..9a6f684e4 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -120,7 +120,7 @@ if ( ! function_exists('force_download'))
 		// Clean output buffer
 		if (ob_get_level() !== 0 && @ob_end_clean() === FALSE)
 		{
-			ob_clean();
+			@ob_clean();
 		}
 
 		// Generate the server headers
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 0587740b1..ae3db5846 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -298,8 +298,7 @@ if ( ! function_exists('get_file_info'))
 					$fileinfo['readable'] = is_readable($file);
 					break;
 				case 'writable':
-					// There are known problems using is_weritable on IIS.  It may not be reliable - consider fileperms()
-					$fileinfo['writable'] = is_writable($file);
+					$fileinfo['writable'] = is_really_writable($file);
 					break;
 				case 'executable':
 					$fileinfo['executable'] = is_executable($file);