backdrop_dirname in core/includes/
Gets the name of the directory from a given path.
backdrop_rmdir in core/includes/
Removes a directory.
backdrop_tempnam in core/includes/
Creates a file with a unique filename in the specified directory.
backdrop_unlink in core/includes/
Deletes a file.
file_download in core/includes/
Page callback: Handles private file transfers.
file_prepare_directory in core/includes/
Checks that the directory exists and is writable.
file_save_upload in core/includes/
Saves a file upload to a new location.
file_stream_wrapper_get_instance_by_uri in core/includes/
Returns a reference to the stream wrapper class responsible for a given URI.
file_stream_wrapper_uri_normalize in core/includes/
Normalizes a URI by making it syntactically correct.
file_transfer in core/includes/
Transfers a file to the client using HTTP.
file_valid_uri in core/includes/
Determines whether the URI has a valid scheme for file API operations.
image_gd_save in core/modules/system/
GD helper to write an image resource to a destination file.
image_style_deliver in core/modules/image/image.module
Menu callback; Given a style and image path, generate a derivative.
StreamWrapperTest::testGetValidStreamScheme in core/modules/simpletest/tests/file.test
Test the scheme functions.