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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  * @package Nette
 11:  */
 12: 
 13: 
 14: 
 15: /**
 16:  * DateTime with serialization and timestamp support for PHP 5.2.
 17:  *
 18:  * @author     David Grudl
 19:  * @package Nette
 20:  */
 21: class DateTime53 extends DateTime
 22: {
 23:     /** minute in seconds */
 24:     const MINUTE = 60;
 25: 
 26:     /** hour in seconds */
 27:     const HOUR = 3600;
 28: 
 29:     /** day in seconds */
 30:     const DAY = 86400;
 31: 
 32:     /** week in seconds */
 33:     const WEEK = 604800;
 34: 
 35:     /** average month in seconds */
 36:     const MONTH = 2629800;
 37: 
 38:     /** average year in seconds */
 39:     const YEAR = 31557600;
 40: 
 41: 
 42:     /**
 43:      * DateTime object factory.
 44:      * @param  string|int|DateTime
 45:      * @return DateTime53
 46:      */
 47:     public static function from($time)
 48:     {
 49:         if ($time instanceof DateTime) {
 50:             return new self($time->format('Y-m-d H:i:s'), $time->getTimezone());
 51: 
 52:         } elseif (is_numeric($time)) {
 53:             if ($time <= self::YEAR) {
 54:                 $time += time();
 55:             }
 56:             return new self(date('Y-m-d H:i:s', $time));
 57: 
 58:         } else { // textual or NULL
 59:             return new self($time);
 60:         }
 61:     }
 62: 
 63: 
 64:     public function __toString()
 65:     {
 66:         return $this->format('Y-m-d H:i:s');
 67:     }
 68: 
 69: 
 70:     public function modifyClone($modify = '')
 71:     {
 72:         $dolly = clone $this;
 73:         return $modify ? $dolly->modify($modify) : $dolly;
 74:     }
 75: 
 76: 
 77:     public function modify($modify)
 78:     {
 79:         parent::modify($modify);
 80:         return $this;
 81:     }
 82: 
 83: 
 84:     public static function __set_state($state)
 85:     {
 86:         return new self($state['date'], new DateTimeZone($state['timezone']));
 87:     }
 88: 
 89: 
 90:     public function __sleep()
 91:     {
 92:         $this->fix = array($this->format('Y-m-d H:i:s'), $this->getTimezone()->getName());
 93:         return array('fix');
 94:     }
 95: 
 96: 
 97:     public function __wakeup()
 98:     {
 99:         $this->__construct($this->fix[0], new DateTimeZone($this->fix[1]));
100:         unset($this->fix);
101:     }
102: 
103: 
104:     public function getTimestamp()
105:     {
106:         return (int) $this->format('U');
107:     }
108: 
109: 
110:     public function setTimestamp($timestamp)
111:     {
112:         return $this->__construct(
113:             gmdate('Y-m-d H:i:s', $timestamp + $this->getOffset()),
114:             new DateTimeZone($this->getTimezone()->getName()) // simply getTimezone() crashes in PHP 5.2.6
115:         );
116:     }
117: 
118: }
119: 
Nette Framework 2.0.12 (for PHP 5.2, un-prefixed) API API documentation generated by ApiGen 2.8.0