phpcmsv9的分页使用到的函数，直接拿来用就可以了

/**
 * URL路径解析，pages 函数的辅助函数
 *
 * @param $par 传入需要解析的变量 默认为，page={$page}
 * @param $url URL地址
 * @return URL
 */

function url_par($par, $url = '') {
    if($url == '') $url = get_url();
    $pos = strpos($url, '?');
    if($pos === false) {
        $url .= '?'.$par;
    } else {
        $querystring = substr(strstr($url, '?'), 1);
        parse_str($querystring, $pars);
        $query_array = array();
        foreach($pars as $k=>$v) {
            if($k != 'page') $query_array[$k] = $v;
        }
        $querystring = http_build_query($query_array).'&'.$par;
        $url = substr($url, 0, $pos).'?'.$querystring;
    }
    return $url;
}
/**
 * 获取当前页面完整URL地址
 */
function get_url() {
    $sys_protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';
    $php_self = $_SERVER['PHP_SELF'] ? safe_replace($_SERVER['PHP_SELF']) : safe_replace($_SERVER['SCRIPT_NAME']);
    $path_info = isset($_SERVER['PATH_INFO']) ? safe_replace($_SERVER['PATH_INFO']) : '';
    $relate_url = isset($_SERVER['REQUEST_URI']) ? safe_replace($_SERVER['REQUEST_URI']) : $php_self.(isset($_SERVER['QUERY_STRING']) ? '?'.safe_replace($_SERVER['QUERY_STRING']) : $path_info);
    return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$relate_url;
}
/**
 * 返回分页路径
 *
 * @param $urlrule 分页规则
 * @param $page 当前页
 * @param $array 需要传递的数组，用于增加额外的方法
 * @return 完整的URL路径
 */
function pageurl($urlrule, $page, $array = array()) {
    if(strpos($urlrule, '~')) {
        $urlrules = explode('~', $urlrule);
        $urlrule = $page < 2 ? $urlrules[0] : $urlrules[1];
    }
    $findme = array('{$page}');
    $replaceme = array($page);
    if (is_array($array)) foreach ($array as $k=>$v) {
        $findme[] = '{$'.$k.'}';
        $replaceme[] = $v;
    }
    $url = str_replace($findme, $replaceme, $urlrule);
    $url = str_replace(array('http://','//','~'), array('~','/','http://'), $url);
    return $url;
}
/**
 * 分页函数
 *
 * @param $num 信息总数
 * @param $curr_page 当前分页
 * @param $perpage 每页显示数
 * @param $urlrule URL规则
 * @param $array 需要传递的数组，用于增加额外的方法
 * @return 分页
 */
function pages($num, $curr_page, $perpage = 20, $urlrule = '', $array = array(),$setpages = 10) {
    if(defined('URLRULE') && $urlrule == '') {
        $urlrule = URLRULE;
        $array = $GLOBALS['URL_ARRAY'];
    } elseif($urlrule == '') {
        $urlrule = url_par('page={$page}');
    }

        $multipage = '';
    if($num > $perpage) {
        $page = $setpages+1;
        $offset = ceil($setpages/2-1);
        $pages = ceil($num / $perpage);
        $from = $curr_page - $offset;
        $to = $curr_page + $offset;
        $more = 0;
        if($page >= $pages) {
            $from = 2;
            $to = $pages-1;
        } else {
            if($from <= 1) {
                $to = $page-1;
                $from = 2;
            }  elseif($to >= $pages) {
                $from = $pages-($page-2);
                $to = $pages-1;
            }
            $more = 1;
        }
//        $multipage .= '<a class="a1">'.$num.L('page_item').'</a>';
        if($curr_page>0) {
            $multipage .= ' <a href="'.pageurl($urlrule, $curr_page-1, $array).'" class="a1">上一页</a>';
            if($curr_page==1) {
                $multipage .= ' <span class="cur">1</span>';
            } elseif($curr_page>6 && $more) {
                $multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a><i>...</i>';
            } else {
                $multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a>';
            }
        }
        for($i = $from; $i <= $to; $i++) {
            if($i != $curr_page) {
                $multipage .= ' <a href="'.pageurl($urlrule, $i, $array).'">'.$i.'</a>';
            } else {
                $multipage .= ' <span class="cur">'.$i.'</span>';
            }
        }
        if($curr_page<$pages) {
            if($curr_page<$pages-5 && $more) {
                $multipage .= ' <i>...</i><a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">下一页</a>';
            } else {
                $multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">下一页</a>';
            }
        } elseif($curr_page==$pages) {
            $multipage .= ' <span class="cur">'.$pages.'</span> <a href="'.pageurl($urlrule, $curr_page, $array).'" class="a1">下一页</a>';
        } else {
            $multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">下一页</a>';
        }
    }
    return $multipage;
}
/**
 * 安全过滤函数
 *
 * @param $string
 * @return string
 */
function safe_replace($string) {
    $string = str_replace('%20','',$string);
    $string = str_replace('%27','',$string);
    $string = str_replace('%2527','',$string);
    $string = str_replace('*','',$string);
    $string = str_replace('"','&quot;',$string);
    $string = str_replace("'",'',$string);
    $string = str_replace('"','',$string);
    $string = str_replace(';','',$string);
    $string = str_replace('<','&lt;',$string);
    $string = str_replace('>','&gt;',$string);
    $string = str_replace("{",'',$string);
    $string = str_replace('}','',$string);
    $string = str_replace('\\','',$string);
    return $string;
}