在php中检查两个时间之间的给定时间，并返回小时数

function getHourDifference($time1, $time2) {
    $timestamp1 = strtotime($time1);
    $timestamp2 = strtotime($time2);
    
    $difference = abs($timestamp2 - $timestamp1);
    $hours = floor($difference / (60 * 60));
    
    return $hours;
}

$time1 = "2022-01-01 10:00:00";
$time2 = "2022-01-01 15:30:00";

$hourDifference = getHourDifference($time1, $time2);
echo "时间1和时间2之间的小时数为：" . $hourDifference;