简单的PHP代码，用于计算今日的八字

<?php
function getEightWords($year, $month, $day, $ // 根据出年    $gan = ['甲', '乙', '丙', '丁', '戊', '己', '庚', '辛', '壬', ''];
    $zhi = ['子', '丑', '寅', '卯', '辰', '巳', '午', '未 '申', '酉', '戌', '亥'];
    $startYear = 1900; // 开始年份
    $ganIndex = ($year - $startYear) % 10;
    $zhiIndex = ($year - $startYear) % 12;
    $ganZhiYear = $gan[$ganIndex] . $zhi[$zhiIndex];
    
    // 根据出生月份计算干支
    $lunarMonth = ['正', '二', '三', '四', '五', '六', '七', '八', '九', '十', '冬', '腊'];
    $ganIndex = ($year - $startYear) % 10;
    $zhiIndex = ($year - $startYear) % 12;
    $monthIndex = $month - 1;
    $ganZhiMonth = $gan[$ganIndex] . $lunarMonth[$monthIndex] . '月';
    
    // 根据出生日计算干支
    $ganIndex = ($year - $startYear) % 10;
    $zhiIndex = ($year - $startYear) % 12;
    $dayIndex = $day - 1;
    $ganZhiDay = $gan[$ganIndex] . $zhi[$zhiIndex] . '日';
    
    // 根据出生时辰计算干支
    $lunarHour = ['子', '丑', '寅', '卯', '辰', '巳', '午', '未', '申', '酉', '戌', '亥'];
    $ganIndex = ($year - $startYear) % 10;
    $zhiIndex = ($year - $startYear) % 12;
    $hourIndex = $hour - 1;
    $ganZhiHour = $gan[$ganIndex] . $lunarHour[$hourIndex] . '时';
    
    return [
        '年干支' => $ganZhiYear,
        '月干支' => $ganZhiMonth,
        '日干支' => $ganZhiDay,
        '时干支' => $ganZhiHour
    ];
}

// 输入出生日期和时辰
$year = 1990;
$month = 1;
$day = 1;
$hour = 12;

$result = getEightWords($year, $month, $day, $hour);

// 输出结果
foreach ($result as $key => $value) {
    echo $key . '：' . $value . '<br>';
}
?>

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