PHP Add Categories & Display Categories

create tool to add/display english & chinese keyword display should word like explorer where left side is folder tree right side will have box to add english & chinese keyword top level has parentid=0 if lvl is selected to add the parentid=searchid and the keyword is entered under there create table CategorySearch ( searchid int auto_increment primary key, keyword_en varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci not null, keyword_cn varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci not null, parentid int default 0 );