Php unlimited classification

Php unlimited classification db design: CREATETABLEIFNOTEXISTS 'test' ('id' INT (1) NOTNULLAUTO_INCREMENT, 'path' VARCHAR (255) NOTNULL php unlimited classification
Db design:

Create table if not exists 'test' ('id' INT (1) not null AUTO_INCREMENT, 'path' VARCHAR (255) not null, 'name' VARCHAR (255) not null, primary key ('id') ENGINE = myisam default char set = 'utf8'; insert into 'test' VALUES ('', '0', 'Company '), ('', '0-1', 'Department 1'), ('', '0-2', 'Department 2 '),('', '0-3', 'Department 3'), ('', '0-1-1 ', 'Group 1'), ('', '0-1-2 ', 'group 2'), ('', '0-2-1', 'group 3'), ('', '0-2-2 ', 'group 4 ');

Php code implementation:

 {$indent}{$row['name']}";}echo "{$option}";