| 0,0 → 1,182 |
|---|
| <?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 1.13 2005/08/01 12:21:14 aidan 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: 1.13 $ |
| * @since PHP 4.1.0 |
| * @require PHP 4.0.5 (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; |
| } |
| } |
| |
| ?> |