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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:     /**
 44:      * DateTime object factory.
 45:      * @param  string|int|DateTime
 46:      * @return DateTime53
 47:      */
 48:     public static function from($time)
 49:     {
 50:         if ($time instanceof DateTime) {
 51:             return new self($time->format('Y-m-d H:i:s'), $time->getTimezone());
 52: 
 53:         } elseif (is_numeric($time)) {
 54:             if ($time <= self::YEAR) {
 55:                 $time += time();
 56:             }
 57:             return new self(date('Y-m-d H:i:s', $time));
 58: 
 59:         } else { // textual or NULL
 60:             return new self($time);
 61:         }
 62:     }
 63: 
 64: 
 65: 
 66:     public function __toString()
 67:     {
 68:         return $this->format('Y-m-d H:i:s');
 69:     }
 70: 
 71: 
 72: 
 73:     public function modifyClone($modify = '')
 74:     {
 75:         $dolly = clone $this;
 76:         return $modify ? $dolly->modify($modify) : $dolly;
 77:     }
 78: 
 79: 
 80: 
 81:     public function modify($modify)
 82:     {
 83:         parent::modify($modify);
 84:         return $this;
 85:     }
 86: 
 87: 
 88: 
 89:     public static function __set_state($state)
 90:     {
 91:         return new self($state['date'], new DateTimeZone($state['timezone']));
 92:     }
 93: 
 94: 
 95: 
 96:     public function __sleep()
 97:     {
 98:         $this->fix = array($this->format('Y-m-d H:i:s'), $this->getTimezone()->getName());
 99:         return array('fix');
100:     }
101: 
102: 
103: 
104:     public function __wakeup()
105:     {
106:         $this->__construct($this->fix[0], new DateTimeZone($this->fix[1]));
107:         unset($this->fix);
108:     }
109: 
110: 
111: 
112:     public function getTimestamp()
113:     {
114:         return (int) $this->format('U');
115:     }
116: 
117: 
118: 
119:     public function setTimestamp($timestamp)
120:     {
121:         return $this->__construct(
122:             gmdate('Y-m-d H:i:s', $timestamp + $this->getOffset()),
123:             new DateTimeZone($this->getTimezone()->getName()) // simply getTimezone() crashes in PHP 5.2.6
124:         );
125:     }
126: 
127: }
128: 
Nette Framework 2.0.7 (for PHP 5.2, un-prefixed) API API documentation generated by ApiGen 2.8.0