+++ /dev/null
-<?php
-// +----------------------------------------------------------------------+
-// | PHP Version 4 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2004 The PHP Group |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 3.0 of the PHP license, |
-// | that is bundled with this package in the file LICENSE, and is |
-// | available at through the world-wide-web at |
-// | http://www.php.net/license/3_0.txt. |
-// | If you did not receive a copy of the PHP license and are unable to |
-// | obtain it through the world-wide-web, please send a note to |
-// | license@php.net so we can mail you a copy immediately. |
-// +----------------------------------------------------------------------+
-// | Authors: Philippe Jausions <Philippe.Jausions@11abacus.com> |
-// | Aidan Lister <aidan@php.net> |
-// +----------------------------------------------------------------------+
-//
-// $Id: version_compare.php,v 1.1 2007-03-31 03:40:36 shizuki Exp $
-
-
-/**
- * Replace version_compare()
- *
- * @category PHP
- * @package PHP_Compat
- * @link http://php.net/function.version_compare
- * @author Philippe Jausions <Philippe.Jausions@11abacus.com>
- * @author Aidan Lister <aidan@php.net>
- * @version $Revision: 1.1 $
- * @since PHP 4.1.0
- * @require PHP 4.0.0 (user_error)
- */
-if (!function_exists('version_compare')) {
- function version_compare($version1, $version2, $operator = '<')
- {
- // Check input
- if (!is_scalar($version1)) {
- user_error('version_compare() expects parameter 1 to be string, ' .
- gettype($version1) . ' given', E_USER_WARNING);
- return;
- }
-
- if (!is_scalar($version2)) {
- user_error('version_compare() expects parameter 2 to be string, ' .
- gettype($version2) . ' given', E_USER_WARNING);
- return;
- }
-
- if (!is_scalar($operator)) {
- user_error('version_compare() expects parameter 3 to be string, ' .
- gettype($operator) . ' given', E_USER_WARNING);
- return;
- }
-
- // Standardise versions
- $v1 = explode('.',
- str_replace('..', '.',
- preg_replace('/([^0-9\.]+)/', '.$1.',
- str_replace(array('-', '_', '+'), '.',
- trim($version1)))));
-
- $v2 = explode('.',
- str_replace('..', '.',
- preg_replace('/([^0-9\.]+)/', '.$1.',
- str_replace(array('-', '_', '+'), '.',
- trim($version2)))));
-
- // Replace empty entries at the start of the array
- while (empty($v1[0]) && array_shift($v1)) {}
- while (empty($v2[0]) && array_shift($v2)) {}
-
- // Release state order
- // '#' stands for any number
- $versions = array(
- 'dev' => 0,
- 'alpha' => 1,
- 'a' => 1,
- 'beta' => 2,
- 'b' => 2,
- 'RC' => 3,
- '#' => 4,
- 'p' => 5,
- 'pl' => 5);
-
- // Loop through each segment in the version string
- $compare = 0;
- for ($i = 0, $x = min(count($v1), count($v2)); $i < $x; $i++) {
- if ($v1[$i] == $v2[$i]) {
- continue;
- }
- $i1 = $v1[$i];
- $i2 = $v2[$i];
- if (is_numeric($i1) && is_numeric($i2)) {
- $compare = ($i1 < $i2) ? -1 : 1;
- break;
- }
- // We use the position of '#' in the versions list
- // for numbers... (so take care of # in original string)
- if ($i1 == '#') {
- $i1 = '';
- } elseif (is_numeric($i1)) {
- $i1 = '#';
- }
- if ($i2 == '#') {
- $i2 = '';
- } elseif (is_numeric($i2)) {
- $i2 = '#';
- }
- if (isset($versions[$i1]) && isset($versions[$i2])) {
- $compare = ($versions[$i1] < $versions[$i2]) ? -1 : 1;
- } elseif (isset($versions[$i1])) {
- $compare = 1;
- } elseif (isset($versions[$i2])) {
- $compare = -1;
- } else {
- $compare = 0;
- }
-
- break;
- }
-
- // If previous loop didn't find anything, compare the "extra" segments
- if ($compare == 0) {
- if (count($v2) > count($v1)) {
- if (isset($versions[$v2[$i]])) {
- $compare = ($versions[$v2[$i]] < 4) ? 1 : -1;
- } else {
- $compare = -1;
- }
- } elseif (count($v2) < count($v1)) {
- if (isset($versions[$v1[$i]])) {
- $compare = ($versions[$v1[$i]] < 4) ? -1 : 1;
- } else {
- $compare = 1;
- }
- }
- }
-
- // Compare the versions
- if (func_num_args() > 2) {
- switch ($operator) {
- case '>':
- case 'gt':
- return (bool) ($compare > 0);
- break;
- case '>=':
- case 'ge':
- return (bool) ($compare >= 0);
- break;
- case '<=':
- case 'le':
- return (bool) ($compare <= 0);
- break;
- case '==':
- case '=':
- case 'eq':
- return (bool) ($compare == 0);
- break;
- case '<>':
- case '!=':
- case 'ne':
- return (bool) ($compare != 0);
- break;
- case '':
- case '<':
- case 'lt':
- return (bool) ($compare < 0);
- break;
- default:
- return;
- }
- }
-
- return $compare;
- }
-}
-
-?>
\ No newline at end of file
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