PhpSpreadsheet/tests/data/Calculation/DateTime/WEEKNUM.php

<?php

return [
    [
        52,
        '21-Dec-2000', 1,
    ],
    [
        1,
        '2000-01-01', 1,
    ],
    [
        2,
        '2000-01-02', 1,
    ],
    [
        1,
        '2000-01-01', 2,
    ],
    [
        2,
        '2000-01-03', 2,
    ],
    [
        1,
        '1995-01-01', 1,
    ],
    [
        1,
        '1995-01-07', 1,
    ],
    [
        2,
        '1995-01-08', 1,
    ],
    [
        1,
        '1995-01-01', 2,
    ],
    [
        2,
        '1995-01-02', 2,
    ],
    [
        28,
        '3/7/1977',
    ],
    [
        '#VALUE!',
        '3/7/1977', 'A',
    ],
    [
        '#NUM!',
        '3/7/1977', 0,
    ],
    [
        '#VALUE!',
        'Invalid', 1,
    ],
    [
        '#NUM!',
        -1,
    ],
];