Hide admin bar in certain condition – for Christophe Glaudel (WP Academy Facebook group)

functions.php

<?php
/*
 * Removes admin bar on front-end for everyone except admins.
 * @audrasjb
 */
function jba_remove_admin_bar( $show_admin_bar ) {
	if ( ! current_user_can( 'administrator' ) && ! is_admin() ) {
		$show_admin_bar = false;
	}
	return $show_admin_bar;
}
add_filter( 'show_admin_bar' , 'jba_remove_admin_bar');