IO

IO - object-oriented handling of files with three base classes: \Path, \Directory, \File. Additionally to them, other classes exist, including abstract ones for organizing a hierarchy.

Class	Description	Available from version
File	Class for handling files.
Directory	Class for handling directories.
Path	Class for handling paths.
FileDeleteException	Exception when deleing a file.
FileNotFoundException	Exception when required file is missing.
FileOpenException	Exception when opening file.
FileNotOpenedException	Exception when failure to open the file.
InvalidPathException	Exception on incorrect file path.
IoException	Base class for all exceptions for file input-output.

The old core DeleteDirFilesEx receives path from site root and its counterpart method receives absolute path from sever root.

Please note : instead of $_SERVER["DOCUMENT_ROOT"] now you can use \Bitrix\Main\Application::getDocumentRoot.

Example

// D7
use Bitrix\Main\Application;
use Bitrix\Main\IO\Directory;
use Bitrix\Main\IO\File;

Directory::createDirectory(
    Application::getDocumentRoot() . "/foo/bar/baz/"
);
File::putFileContents(
Application::getDocumentRoot() . "/foo/bar/baz/1.txt",
    "hello from D7"
);
Directory::deleteDirectory(
    Application::getDocumentRoot() . "/foo/bar/baz/"
);