1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Utils;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * DateTime.
 15:  *
 16:  * @author     David Grudl
 17:  */
 18: class DateTime extends \DateTime
 19: {
 20:     /** minute in seconds */
 21:     const MINUTE = 60;
 22: 
 23:     /** hour in seconds */
 24:     const HOUR = 3600;
 25: 
 26:     /** day in seconds */
 27:     const DAY = 86400;
 28: 
 29:     /** week in seconds */
 30:     const WEEK = 604800;
 31: 
 32:     /** average month in seconds */
 33:     const MONTH = 2629800;
 34: 
 35:     /** average year in seconds */
 36:     const YEAR = 31557600;
 37: 
 38: 
 39:     /**
 40:      * DateTime object factory.
 41:      * @param  string|int|\DateTime
 42:      * @return DateTime
 43:      */
 44:     public static function from($time)
 45:     {
 46:         if ($time instanceof \DateTime || $time instanceof \DateTimeInterface) {
 47:             return new static($time->format('Y-m-d H:i:s'), $time->getTimezone());
 48: 
 49:         } elseif (is_numeric($time)) {
 50:             if ($time <= self::YEAR) {
 51:                 $time += time();
 52:             }
 53:             $tmp = new static('@' . $time);
 54:             return $tmp->setTimeZone(new \DateTimeZone(date_default_timezone_get()));
 55: 
 56:         } else { // textual or NULL
 57:             return new static($time);
 58:         }
 59:     }
 60: 
 61: 
 62:     /**
 63:      * @return string
 64:      */
 65:     public function __toString()
 66:     {
 67:         return $this->format('Y-m-d H:i:s');
 68:     }
 69: 
 70: 
 71:     /**
 72:      * @param  string
 73:      * @return self
 74:      */
 75:     public function modifyClone($modify = '')
 76:     {
 77:         $dolly = clone $this;
 78:         return $modify ? $dolly->modify($modify) : $dolly;
 79:     }
 80: 
 81: 
 82:     /**
 83:      * @param  int
 84:      * @return self
 85:      */
 86:     public function setTimestamp($timestamp)
 87:     {
 88:         $zone = $this->getTimezone();
 89:         $this->__construct('@' . $timestamp);
 90:         return $this->setTimeZone($zone);
 91:     }
 92: 
 93: 
 94:     /**
 95:      * @return int|string
 96:      */
 97:     public function getTimestamp()
 98:     {
 99:         $ts = $this->format('U');
100:         return is_float($tmp = $ts * 1) ? $ts : $tmp;
101:     }
102: 
103: 
104:     /**
105:      * Returns new DateTime object formatted according to the specified format.
106:      * @param string The format the $time parameter should be in
107:      * @param string String representing the time
108:      * @param string|\DateTimeZone desired timezone (default timezone is used if NULL is passed)
109:      * @return DateTime|FALSE
110:      */
111:     public static function createFromFormat($format, $time, $timezone = NULL)
112:     {
113:         if ($timezone === NULL) {
114:             $timezone = new \DateTimeZone(date_default_timezone_get());
115: 
116:         } elseif (is_string($timezone)) {
117:             $timezone = new \DateTimeZone($timezone);
118: 
119:         } elseif (!$timezone instanceof \DateTimeZone) {
120:             throw new Nette\InvalidArgumentException('Invalid timezone given');
121:         }
122: 
123:         $date = parent::createFromFormat($format, $time, $timezone);
124:         return $date ? static::from($date) : FALSE;
125:     }
126: 
127: }
128: