1
1
Fork 0
mirror of https://code.mensbeam.com/MensBeam/Arsse.git synced 2024-12-22 21:22:40 +00:00
Arsse/lib/Misc/Date.php
2017-10-19 22:58:42 -04:00

59 lines
2.8 KiB
PHP

<?php
declare(strict_types=1);
namespace JKingWeb\Arsse\Misc;
class Date {
const FORMAT = [ // in out
'iso8601' => ["!Y-m-d\TH:i:s", "Y-m-d\TH:i:s\Z" ], // NOTE: ISO 8601 dates require special input processing because of varying formats for timezone offsets
'iso8601m' => ["!Y-m-d\TH:i:s.u", "Y-m-d\TH:i:s.u\Z" ], // NOTE: ISO 8601 dates require special input processing because of varying formats for timezone offsets
'microtime' => ["U.u", "0.u00 U" ], // NOTE: the actual input format at the user level matches the output format; pre-processing is required for PHP not to fail
'http' => ["!D, d M Y H:i:s \G\M\T", "D, d M Y H:i:s \G\M\T"],
'sql' => ["!Y-m-d H:i:s", "Y-m-d H:i:s" ],
'date' => ["!Y-m-d", "Y-m-d" ],
'time' => ["!H:i:s", "H:i:s" ],
'unix' => ["U", "U" ],
'float' => ["U.u", "U.u" ],
];
public static function transform($date, string $outFormat = null, string $inFormat = null, bool $inLocal = false) {
$date = self::normalize($date, $inFormat, $inLocal);
if (is_null($date) || is_null($outFormat)) {
return $date;
}
$outFormat = strtolower($outFormat);
if ($outFormat=="unix") {
return $date->getTimestamp();
}
switch ($outFormat) {
case 'http': $f = "D, d M Y H:i:s \G\M\T"; break;
case 'iso8601': $f = "Y-m-d\TH:i:s"; break;
case 'sql': $f = "Y-m-d H:i:s"; break;
case 'date': $f = "Y-m-d"; break;
case 'time': $f = "H:i:s"; break;
default: $f = $outFormat; break;
}
return $date->format($f);
}
public static function normalize($date, string $inFormat = null) {
return ValueInfo::normalize($date, ValueInfo::T_DATE, $inFormat);
}
public static function add(string $interval, $date = null): \DateTimeInterface {
return self::modify("add", $interval, $date);
}
public static function sub(string $interval, $date = null): \DateTimeInterface {
return self::modify("sub", $interval, $date);
}
protected static function modify(string $func, string $interval, $date = null): \DateTimeInterface {
$date = self::normalize($date ?? time());
if ($date instanceof \DateTimeImmutable) {
return $date->$func(new \DateInterval($interval));
} else {
$date->$func(new \DateInterval($interval));
return $date;
}
}
}