php - bootstrap how to add/remove category just like opencart? -

recently, working on php project comes product , product category. each product can assign multiple categories.

product name, quantity these quite easy handle input text box. category, bit complicated. use checkboxes handle category selection. works fine inserting mysql use foreach loop check checkbox has clicked. update/del using array_diff check new selected checkbox or unselected.

then found out opencart handle category in way

1 input box user key in category name auto suggestion, when clicking on suggested name, added. remove it, click on minus sign button. , straight forward.

so wondering there way using bootstrap design? or there opensource such function ?