Function Exercise

index.php

<?php

$cart = [
    [
        "product" => "paper",
        "quantity" => 7,
        "price" => 1.26
    ],
    [
        "product" => "pen",
        "quantity" => 2,
        "price" => 0.12
    ],
    [
        "product" => "eraser",
        "quantity" => 5,
        "price" => 0.89
    ]
];

$stocks = [
    [
        "product" => "paper",
        "quantity" => 88
    ],
    [
        "product" => "handcleaner",
        "quantity" => 0
    ],
    [
        "product" => "pen",
        "quantity" => 34
    ],
    [
        "product" => "paperclip",
        "quantity" => 11
    ],
    [
        "product" => "eraser",
        "quantity" => 2
    ],
    [
        "product" => "letter",
        "quantity" => 53
    ]
];