PhpSpreadsheet/tests/data/Calculation/LookupRef/ROW.php

<?php

return [
    [
        1,
        null,
    ],
    [
        10,
        'C10',
    ],
    [
        [[10], [11], [12]],
        'C10:C12',
    ],
    [
        [[10], [11], [12]],
        'C10:D12',
    ],
    [
        [[10], [11], [12]],
        'Sheet1!C10:C12',
    ],
    [
        [[10], [11], [12]],
        '"WorkSheet #1"!C10:C12',
    ],
];