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<?php
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/***************************************************************
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* Copyright notice
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*
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* (c) 2011 Susanne Moog <typo3@susanne-moog.de>
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* All rights reserved
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*
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* This script is part of the TYPO3 project. The TYPO3 project is
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* free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The GNU General Public License can be found at
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* http://www.gnu.org/copyleft/gpl.html.
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* A copy is found in the textfile GPL.txt and important notices to the license
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* from the author is found in LICENSE.txt distributed with these scripts.
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*
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*
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* This script is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This copyright notice MUST APPEAR in all copies of the script!
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***************************************************************/
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/**
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* Class with helper functions for version number handling
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*
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* @author Susanne Moog <typo3@susanne-moog.de>
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* @package TYPO3
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* @subpackage t3lib
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*/
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final class t3lib_utility_VersionNumber {
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/**
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* Returns an integer from a three part version number, eg '4.12.3' -> 4012003
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*
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* @param $versionNumber string Version number on format x.x.x
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* @return integer Integer version of version number (where each part can count to 999)
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*/
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public static function convertVersionNumberToInteger($versionNumber) {
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$versionParts = explode('.', $versionNumber);
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return intval((int) $versionParts[0] . str_pad((int) $versionParts[1], 3, '0', STR_PAD_LEFT) . str_pad((int) $versionParts[2], 3, '0', STR_PAD_LEFT));
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}
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/**
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* Returns the three part version number (string) from an integer, eg 4012003 -> '4.12.3'
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*
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* @param $versionInteger integer Integer representation of version number
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* @return mixed Version number as format x.x.x or FALSE if integer can not converted (error)
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*/
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public static function convertIntegerToVersionNumber($versionInteger = NULL) {
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if(is_numeric($versionInteger) && $versionInteger > 1000000) {
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$versionString = str_pad($versionInteger, 9, '0', STR_PAD_LEFT);
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$parts = array(
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substr($versionString, 0, 3),
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substr($versionString, 3, 3),
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substr($versionString, 6, 3)
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);
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return intval($parts[0]) . '.' . intval($parts[1]) . '.' . intval($parts[2]);
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}
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return FALSE;
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}
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}
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?>
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