SimpleMachines / SMF2.1

			if (isset($_POST['use_subdirectories_for_attachments']) && empty($_POST['basedirectory_for_attachments']))

				$_POST['basedirectory_for_attachments'] = (!empty($modSettings['basedirectory_for_attachments']) ? ($modSettings['basedirectory_for_attachments']) : $boarddir);

			if (!empty($_POST['use_subdirectories_for_attachments']) && !empty($modSettings['attachment_basedirectories']))

			{

				if (!is_array($modSettings['attachment_basedirectories']))

					$modSettings['attachment_basedirectories'] = $smcFunc['json_decode']($modSettings['attachment_basedirectories'], true);

			}

			else

				$modSettings['attachment_basedirectories'] = array();

			if (!empty($_POST['use_subdirectories_for_attachments']) && !empty($_POST['basedirectory_for_attachments']) && !in_array($_POST['basedirectory_for_attachments'], $modSettings['attachment_basedirectories']))

			{

					if (createThumbnail($filename, $modSettings['attachmentThumbWidth'], $modSettings['attachmentThumbHeight']))

					{

						// So what folder are we putting this image in?

						if (!empty($modSettings['currentAttachmentUploadDir']))

						{

							if (!is_array($modSettings['attachmentUploadDir']))

								$modSettings['attachmentUploadDir'] = $smcFunc['json_decode']($modSettings['attachmentUploadDir'], true);

							$id_folder_thumb = $modSettings['currentAttachmentUploadDir'];

						}

						else

						{

							$id_folder_thumb = 1;

						}

						// Calculate the size of the created thumbnail.

						$size = @getimagesize($filename . '_thumb');

	global $smcFunc, $modSettings, $context, $txt;

	// We need to know where this thing is going.

	if (!empty($modSettings['currentAttachmentUploadDir']))

	{

		if (!is_array($modSettings['attachmentUploadDir']))

			$modSettings['attachmentUploadDir'] = $smcFunc['json_decode']($modSettings['attachmentUploadDir'], true);

		// Just use the current path for temp files.

		$attach_dirs = $modSettings['attachmentUploadDir'];

	}

	else

	{

		$attach_dirs = array($modSettings['attachmentUploadDir']);

	}

	foreach ($attach_dirs as $attach_dir)

	{