Multilevel menu written in php and mysql

1. Create database zadatak_izbornik and table izbornik: CREATE TABLE izbornik ( id int(11) unsigned primary key auto_increment, title varchar(255) NOT NULL, parent_id int(11) unsigned DEFAULT NULL, FOREIGN KEY (parent_id) REFERENCES izbornik(id) ON UPDATE CASCADE ON DELETE RESTRICT );

INSERT INTO izbornik (id, title, parent_id) VALUES (1, 'Prvi', NULL); INSERT INTO izbornik (id, title, parent_id) VALUES (2, 'Drugi', NULL); INSERT INTO izbornik (id, title, parent_id) VALUES (3, 'Treći', NULL); INSERT INTO izbornik (id, title, parent_id) VALUES (4, 'Prvi-child1', 1); INSERT INTO izbornik (id, title, parent_id) VALUES (5, 'Prvi-child2', 1); INSERT INTO izbornik (id, title, parent_id) VALUES (6, 'Prvi-child3', 1); INSERT INTO izbornik (id, title, parent_id) VALUES (7, 'Prvi-child1-child1', 4); INSERT INTO izbornik (id, title, parent_id) VALUES (8, 'Prvi-child1-child2', 4); INSERT INTO izbornik (id, title, parent_id) VALUES (9, 'Drugi-child1', 2);

2. modify Config.php to your mysql username and password

3. run