mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-22 22:08:42 +00:00
34 lines
749 B
PHP
34 lines
749 B
PHP
<?php
|
|
|
|
class UOJTime {
|
|
public static ?DateTime $time_now = null;
|
|
public static string $time_now_str = '';
|
|
|
|
const FORMAT = 'Y-m-d H:i:s';
|
|
const MAX_TIME = '9999-12-31 23:59:59';
|
|
|
|
public static function init() {
|
|
self::$time_now = new DateTime();
|
|
self::$time_now_str = self::$time_now->format(static::FORMAT);
|
|
}
|
|
|
|
public static function str2time($input) {
|
|
if (!is_string($input)) {
|
|
return null;
|
|
}
|
|
try {
|
|
$time = new DateTime($input);
|
|
if ($time->format(static::FORMAT) !== $input) {
|
|
return null;
|
|
}
|
|
return $time;
|
|
} catch (Exception $e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static function time2str(DateTime $time) {
|
|
return $time->format(static::FORMAT);
|
|
}
|
|
}
|