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PAL.C.T MINI SHELL
files >> /var/www/html/gs1/php/php1/Compat/Function/
upload
files >> /var/www/html/gs1/php/php1/Compat/Function/version_compare.php

<?php
/**
 * Replace version_compare()
 *
 * @category    PHP
 * @package     PHP_Compat
 * @license     LGPL - http://www.gnu.org/licenses/lgpl.html
 * @copyright   2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
 * @link        http://php.net/function.version_compare
 * @author      Philippe Jausions <Philippe.Jausions@11abacus.com>
 * @author      Aidan Lister <aidan@php.net>
 * @version     $Revision: 269597 $
 * @since       PHP 4.1.0
 * @require     PHP 4.0.5 (user_error)
 */
function php_compat_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;
}


// Define
if (!function_exists('version_compare')) {
    function version_compare($version1, $version2, $operator = '<')
    {
        return php_compat_version_compare($version1, $version2, $operator);
    }
}
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