PHP method to convert date to JDE's Confucian calendar format

This article mainly introduces the method of converting dates into JDE's Confucian calendar format in PHP. It has a certain reference value. Now I share it with you. Friends in need can refer to it

JDE's Confucian calendar format The calendar format rules are as follows:

The Confucian calendar is a 6-digit number; (Example: January 1, 2018 => 118001)

The first digit indicates the century (Example: 1 indicates the 21st century; 0 means the 20th century);

The second and third digits represent the year (for example: 2018 is 18);

The last three digits represent the day of the year;

The method is as follows:

/**
 * 日期转换为 Jde 儒日历 【支持时间转换范围：1970 - 2999年】
 * 【六位: 第一位标识 世纪 例： 0表示20世纪,1表示21世纪,第二、三位表示年,最后三位表示本年的第几天】
 * 例：2018-01-01  =》 118001
 * @param $date
 * @return string */function getJdeDate($date){    #转换为时间戳
    $unix_time = strtotime($date);    #获取时间信息
    $ary_date = getdate($unix_time);    #获取年
    $str_year = $ary_date['year'];    #获取世纪标识 【20世纪 => 0; 21世纪 => 1; 22世纪 => 2】
    #如果年/100有余数
    if($str_year%100) {        
    $century = ceil($str_year/100)%10; #向上取整
    } else {        
    $century = floor($str_year/100)%10; #向下取整    
    }    #获取年后两位
    $year = substr($str_year,2);    #获取一年中的第几天
    $year_day = $ary_date['yday'] + 1;    #如果不足三位数补足三位数
    $year_day = str_pad($year_day,3,0,STR_PAD_LEFT);    #儒日历
    return $century.$year.$year_day;
}

Test case:

<?php
/**
 * 日期转换为 Jde 儒日历 【支持时间转换范围：1970 - 2999年】
 * 【六位: 第一位标识 世纪 例： 0表示20世纪,1表示21世纪,第二、三位表示年,最后三位表示本年的第几天】
 * 例：2018-01-01  =》 118001
 * @param $date
 * @return string
 */
function getJdeDate($date){
    #转换为时间戳
    $unix_time = strtotime($date);
    #获取时间信息
    $ary_date = getdate($unix_time);
    #获取年
    $str_year = $ary_date[&#39;year&#39;];
    #获取世纪标识 【20世纪 => 0; 21世纪 => 1; 22世纪 => 2】
    #如果年/100有余数
    if($str_year%100) {
        $century = ceil($str_year/100)%10; #向上取整
    } else {
        $century = floor($str_year/100)%10; #向下取整
    }
    #获取年后两位
    $year = substr($str_year,2);
    #获取一年中的第几天
    $year_day = $ary_date[&#39;yday&#39;] + 1;
    #如果不足三位数补足三位数
    $year_day = str_pad($year_day,3,0,STR_PAD_LEFT);
    #儒日历
    return $century.$year.$year_day;
}
echo getJdeDate(&#39;2018-01-01 00:00:00&#39;);

Output:

118001

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