Array
(
    [po_number] => 747987
    [supplier_id] => 37
    [purchase_date] => 2026-03-01
    [currency] => cash
    [subtotal] => 4000.00
    [tax_percent] => 0
    [tax_amount] => 0.00
    [discount_percent] => 0
    [discount] => 0
    [shipping] => 0
    [grand_total] => 4000.00
    [notes] => nj
    [items] => [{"material_id":"12","quantity":"200","unit_price":"20","total_price":"4000.00"}]
)
