95 lines
2.3 KiB
PHP
95 lines
2.3 KiB
PHP
<?php
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namespace App\Support;
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use Carbon\Carbon;
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class Dates
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{
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/**
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* Bitwise operator for setting days of week to integer field
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*
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* @param int $datefield initial datefield
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* @param array $day_enums Array of values from config("enum.days")
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*
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* @return int
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*/
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public static function setDays(int $datefield, array $day_enums): int
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{
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foreach ($day_enums as $day) {
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$datefield |= $day;
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}
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return $datefield;
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}
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/**
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* Bit check if a day exists within a integer bitfield
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*
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* @param int $datefield datefield from database
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* @param int $day_enum Value from config("enum.days")
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*
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* @return bool
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*/
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public static function hasDay(int $datefield, int $day_enum): bool
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{
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return ($datefield & $day_enum) === $datefield;
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}
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/**
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* Get the list of months, given a start date
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*
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* @param Carbon $start_date
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*
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* @return array
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*/
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public static function getMonthsList(Carbon $start_date): array
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{
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$months = [];
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$now = date('Y-m');
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$last_month = $start_date;
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do {
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$last_value = $last_month->format('Y-m');
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$months[$last_value] = $last_month->format('Y F');
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$last_month = $last_month->addMonth();
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} while ($last_value !== $now);
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return $months;
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}
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/**
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* Return the start/end dates for a given month/year
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*
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* @param string $month In "YYYY-MM" format
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*
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* @return array
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*/
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public static function getMonthBoundary(string $month): array
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{
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[$year, $month] = explode('-', $month);
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$days = static::getDaysInMonth($month, $year);
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return [
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"$year-$month-01",
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"$year-$month-$days",
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];
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}
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/**
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* Get the number of days in a month
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* https://www.php.net/manual/en/function.cal-days-in-month.php#38666
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*
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* @param int $month
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* @param int $year
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*
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* @return int
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*/
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public static function getDaysInMonth($month, $year): int
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{
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$month = (int) $month;
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$year = (int) $year;
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return $month == 2 ? ($year % 4 ? 28 : ($year % 100 ? 29 : ($year % 400 ? 28 : 29))) : (($month - 1) % 7 % 2 ? 30 : 31);
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}
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}
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