PHP Decode

<?php

declare(strict_types=1);

use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;

return [
    [
        5.6699999999999999,
        '12.34+5.67j',
    ],
    [
        6780000000.0,
        '1.234E-5+6.78E9i',
    ],
    [
        2.5,
        '3.5+2.5i',
    ],
    [
        1,
        '3.5+i',
    ],
    [
        0,
        '3.5',
    ],
    [
        -1,
        '3.5-i',
    ],
    [
        -2.5,
        '3.5-2.5i',
    ],
    [
        2.5,
        '1+2.5i',
    ],
    [
        1,
        '1+i',
    ],
    [
        0,
        '1',
    ],
    [
        0,
        1,
    ],
    [
        -1,
        '1-i',
    ],
    [
        -2.5,
        '1-2.5i',
    ],
    [
        2.5,
        '2.5i',
    ],
    [
        1,
        'i',
    ],
    [
        0,
        '0',
    ],
    [
        0,
        0,
    ],
    [
        0,
        0.0,
    ],
    [
        -1,
        '-i',
    ],
    [
        -2.5,
        '-2.5i',
    ],
    [
        2.5,
        '-1+2.5i',
    ],
    [
        1,
        '-1+i',
    ],
    [
        0,
        '-1',
    ],
    [
        -1,
        '-1-i',
    ],
    [
        -2.5,
        '-1-2.5i',
    ],
    [
        2.5,
        '-3.5+2.5i',
    ],
    [
        1,
        '-3.5+i',
    ],
    [
        0,
        '-3.5',
    ],
    [
        -1,
        '-3.5-i',
    ],
    [
        -2.5,
        '-3.5-2.5i',
    ],
    [
        ExcelError::NAN(),
        'Invalid Complex Number',
    ],
];
 ?>