WordPress at a glance
function is not described

wp_make_plugin_file_tree() WP 4.9.0

Makes a tree structure for the plugin editor's file list.

No Hooks.

Return

Array. Tree structure for listing plugin files.

Usage

wp_make_plugin_file_tree( $plugin_editable_files );
$plugin_editable_files(array) (required)
List of plugin file paths.

Code of wp make plugin file tree: wp-admin/includes/misc.php WP 5.2.2

<?php
function wp_make_plugin_file_tree( $plugin_editable_files ) {
	$tree_list = array();
	foreach ( $plugin_editable_files as $plugin_file ) {
		$list     = explode( '/', preg_replace( '#^.+?/#', '', $plugin_file ) );
		$last_dir = &$tree_list;
		foreach ( $list as $dir ) {
			$last_dir =& $last_dir[ $dir ];
		}
		$last_dir = $plugin_file;
	}
	return $tree_list;
}