/home/kueuepay/www/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/Color/BuiltIn.php
<?php

namespace PhpOffice\PhpSpreadsheet\Reader\Xls\Color;

class BuiltIn
{
    private const BUILTIN_COLOR_MAP = [
        0x00 => '000000',
        0x01 => 'FFFFFF',
        0x02 => 'FF0000',
        0x03 => '00FF00',
        0x04 => '0000FF',
        0x05 => 'FFFF00',
        0x06 => 'FF00FF',
        0x07 => '00FFFF',
        0x40 => '000000', // system window text color
        0x41 => 'FFFFFF', // system window background color
    ];

    /**
     * Map built-in color to RGB value.
     *
     * @param int $color Indexed color
     *
     * @return array
     */
    public static function lookup($color)
    {
        return ['rgb' => self::BUILTIN_COLOR_MAP[$color] ?? '000000'];
    }
}
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.