WordPress at a glance
function is not described

populate_roles() WP 2.0.0

Execute WordPress role creation for the various WordPress versions.

No Hooks.

Return

Nothing (null).

Usage

populate_roles();

Code of populate roles: wp-admin/includes/schema.php WP 5.2.2

<?php
function populate_roles() {
	populate_roles_160();
	populate_roles_210();
	populate_roles_230();
	populate_roles_250();
	populate_roles_260();
	populate_roles_270();
	populate_roles_280();
	populate_roles_300();
}