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Arsse/lib/Misc/Date.php
2018-01-12 09:48:33 -05:00

40 lines
1.3 KiB
PHP

<?php
/** @license MIT
* Copyright 2017 J. King, Dustin Wilson et al.
* See LICENSE and AUTHORS files for details */
declare(strict_types=1);
namespace JKingWeb\Arsse\Misc;
class Date {
public static function transform($date, string $outFormat = null, string $inFormat = null) {
$date = ValueInfo::normalize($date, ValueInfo::T_DATE, $inFormat);
if (!$date) {
return null;
}
$out = ValueInfo::normalize($date, ValueInfo::T_STRING, null, $outFormat);
if ($outFormat=="unix") {
$out = (int) $out;
} elseif ($outFormat=="float") {
$out = (float) $out;
}
return $out;
}
public static function normalize($date, string $inFormat = null) {
return ValueInfo::normalize($date, ValueInfo::T_DATE, $inFormat);
}
public static function add(string $interval, $date = "now") {
return self::modify("add", $interval, $date);
}
public static function sub(string $interval, $date = "now") {
return self::modify("sub", $interval, $date);
}
protected static function modify(string $func, string $interval, $date) {
$date = self::normalize($date);
return $date ? $date->$func(new \DateInterval($interval)) : null;
}
}