Gets the name of the directory from a given path.
PHP's dirname() does not properly pass streams, so this function fills that gap. It is backwards compatible with normal paths and will use PHP's dirname() as a fallback.
Compatibility: normal paths and stream wrappers.
$uri: A URI or path.
A string containing the directory name.
dirname()
function drupal_dirname($uri) {
$scheme = file_uri_scheme($uri);
if ($scheme && file_stream_wrapper_valid_scheme($scheme)) {
return file_stream_wrapper_get_instance_by_scheme($scheme)
->dirname($uri);
}
else {
return dirname($uri);
}
}