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80 lines
3.1 KiB
PHP
80 lines
3.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace JKingWeb\Arsse\Misc;
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class Date {
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public static function transform($date, string $outFormat = null, string $inFormat = null, bool $inLocal = false) {
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$date = self::normalize($date, $inFormat, $inLocal);
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if (is_null($date) || is_null($outFormat)) {
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return $date;
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}
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$outFormat = strtolower($outFormat);
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if ($outFormat=="unix") {
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return $date->getTimestamp();
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}
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switch ($outFormat) {
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case 'http': $f = "D, d M Y H:i:s \G\M\T"; break;
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case 'iso8601': $f = "Y-m-d\TH:i:s"; break;
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case 'sql': $f = "Y-m-d H:i:s"; break;
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case 'date': $f = "Y-m-d"; break;
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case 'time': $f = "H:i:s"; break;
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default: $f = $outFormat; break;
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}
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return $date->format($f);
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}
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public static function normalize($date, string $inFormat = null, bool $inLocal = false) {
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if ($date instanceof \DateTimeInterface) {
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return $date;
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} elseif (is_numeric($date)) {
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$time = (int) $date;
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} elseif ($date===null) {
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return null;
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} elseif (is_string($date)) {
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try {
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$tz = (!$inLocal) ? new \DateTimeZone("UTC") : null;
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if (!is_null($inFormat)) {
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switch ($inFormat) {
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case 'http': $f = "D, d M Y H:i:s \G\M\T"; break;
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case 'iso8601': $f = "Y-m-d\TH:i:sP"; break;
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case 'sql': $f = "Y-m-d H:i:s"; break;
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case 'date': $f = "Y-m-d"; break;
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case 'time': $f = "H:i:s"; break;
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default: $f = $inFormat; break;
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}
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return \DateTime::createFromFormat("!".$f, $date, $tz);
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} else {
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return new \DateTime($date, $tz);
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}
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} catch (\Throwable $e) {
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return null;
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}
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} elseif (is_bool($date)) {
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return null;
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} else {
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$time = (int) $date;
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}
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$tz = (!$inLocal) ? new \DateTimeZone("UTC") : null;
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$d = new \DateTime("now", $tz);
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$d->setTimestamp($time);
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return $d;
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}
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public static function add(string $interval, $date = null): \DateTimeInterface {
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return self::modify("add", $interval, $date);
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}
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public static function sub(string $interval, $date = null): \DateTimeInterface {
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return self::modify("sub", $interval, $date);
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}
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protected static function modify(string $func, string $interval, $date = null): \DateTimeInterface {
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$date = self::normalize($date ?? time());
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if ($date instanceof \DateTimeImmutable) {
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return $date->$func(new \DateInterval($interval));
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} else {
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$date->$func(new \DateInterval($interval));
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return $date;
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}
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}
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}
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