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