Moment.php

<?php


namespace Yonna\Foundation;

class Moment
{
    /**
     * 获取一个时间戳在该周内的星期一
     * @param $timestamp
     * @return bool|string
     */
    public static function getMonday($timestamp)
    {
        $timestamp2 = strtotime(date("Y-m-d", $timestamp) . " last monday");
        if (($timestamp - $timestamp2) / 86400 == 7) {
            return date("Y-m-d", $timestamp);
        }
        return date("Y-m-d", $timestamp2);
    }

    /**
     * 获取一个时间戳在该季度内的首月
     * @param $timestamp
     * @return string
     */
    public static function getQuarterFirstMonth($timestamp): string
    {
        $m = intval(date('m', $timestamp));
        switch ($m) {
            case 1:
            case 2:
            case 3:
                $m = '01';
                break;
            case 4:
            case 5:
            case 6:
                $m = '04';
                break;
            case 7:
            case 8:
            case 9:
                $m = '07';
                break;
            case 10:
            case 11:
            case 12:
                $m = '10';
                break;
        }
        return $m;
    }

    /**
     * 获取一个时间戳在该季度内的最后一个月
     * @param $timestamp
     * @return bool|string
     */
    public static function getQuarterLastMonth($timestamp)
    {
        $m = date('m', $timestamp);
        switch ($m) {
            case 1:
            case 2:
            case 3:
                $m = '03';
                break;
            case 4:
            case 5:
            case 6:
                $m = '06';
                break;
            case 7:
            case 8:
            case 9:
                $m = '09';
                break;
            case 10:
            case 11:
            case 12:
                $m = 12;
                break;
        }
        return $m;
    }

    /**
     * @param $str
     * @param bool $isFloat
     * @param int $deep 深度 毫秒 000 微秒 000000
     * @return string | array
     */
    public static function strToMicrotime($str, $isFloat = false, $deep = 6)
    {
        $micros = explode('.', $str);
        $micro = str_repeat('0', $deep);
        if (is_array($micros) && count($micros) === 2) {
            $micro = $micros[1];
        }
        if ($isFloat) {
            return floatval(strtotime($str) . '.' . $micro);
        } else {
            $micros[1] = $micro;
            return $micros;
        }
    }

    /**
     * @param $format
     * @param $val
     * @return string
     */
    public static function datetimeMicro($format, $val)
    {
        $micros = static::strToMicrotime($val);
        return date($format, strtotime($micros[0])) . '.' . $micros[1];
    }

}