1，升级办法我就不说啦在readme文件中说的很详细啦
2，升级前基本的注意事项（readme文档中提到的）我就不说啦
2，升级前推荐修改/libs/db.php
这个可以参考9.7中修改办法：http://blog.csdn.net/clin003/archive/2007/08/16/1745853.aspx
大致在：202行回车添加代码
$dbcharset='utf8'; mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary"); 这部分添加后的样子是这样的：
if ( ! isset($this->dbh) || ! $this->dbh ) { $this->connect($this->dbuser, $this->dbpassword, $this->dbhost); $dbcharset='utf8'; mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary"); $this->select($this->dbname); }这是解决中文文章乱码问题。
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另外一个问题是：9.8升级后查看文章内容后，在Pligg beta 9 Home » About i0Day »后便显示的文章标题会变成乱码的
这个解决办法目前我就知道一个：
这个问题的解决办法参考自：http://forums.pligg.com/bug-report/8793-chinese-characters-bug.html
打开/libs/html1.php在大致124行找到函数function do_sidebar($var_smarty)使用9.7中的相应函数替换即可。
替换前的9.8的样子是这样的：
function do_sidebar($var_smarty) { // show the categories in the sidebar global $db, $dblang, $globals, $the_cats, $navwhere; // fix for 'undefined index' errors if(!isset($navwhere['text4'])){$navwhere['text4'] = '';}else{$navwhere['text4'] = htmlentities($navwhere['text4']);} if(!isset($navwhere['text3'])){$navwhere['text3'] = '';}else{$navwhere['text3'] = htmlentities($navwhere['text3']);} if(!isset($navwhere['text2'])){$navwhere['text2'] = '';}else{$navwhere['text2'] = htmlentities($navwhere['text2']);} if(!isset($navwhere['text1'])){$navwhere['text1'] = '';}else{$navwhere['text1'] = htmlentities($navwhere['text1']);} if(!isset($navwhere['link3'])){$navwhere['link3'] = '';} if(!isset($navwhere['link2'])){$navwhere['link2'] = '';} if(!isset($navwhere['link1'])){$navwhere['link1'] = '';} $var_smarty->assign('navbar_where', $navwhere); $var_smarty->assign('body_args', ''); // fix for 'undefined index' errors $_caching = $var_smarty->cache; // get the current cache settings $var_smarty->cache = true; // cache has to be on otherwise is_cached will always be false $var_smarty->cache_lifetime = –1; // lifetime has to be set to something otherwise is_cached will always be false $thetpl = $var_smarty->get_template_vars('the_template_sidebar_modules') . '/categories.tpl'; // check to see if the category sidebar module is already cached // if it is, use it if(isset($_REQUEST['category'])){ $thecat = sanitize($_REQUEST['category'], 3); }else{ $thecat = ''; } if ($var_smarty->is_cached($thetpl, 'sidebar|category|'.$thecat)) { $var_smarty->assign('cat_array', 'x'); // this is needed. sidebar.tpl won't include the category module if cat_array doesnt have some data }else{ if(isset($_REQUEST['category'])){$thecat = $db->get_var("SELECT category_name FROM " . table_categories . " WHERE `category_safe_name` = '".urlencode(sanitize($_REQUEST['category'], 1))."';");} 
if(!empty($_REQUEST['id'])) { $doing_story=true; } else { $doing_story=false; } $var_smarty->assign('UrlMethod', urlmethod); foreach($the_cats as $cat){ if($cat->category_id == $thecat && $cat->category_lang == $dblang && $cat->category_parent == 0) { $globals['category_id'] = $cat->category_id; $globals['category_name'] = $cat->category_name; } } $pos = strrpos($_SERVER["SCRIPT_NAME"], "/"); $script_name = substr($_SERVER["SCRIPT_NAME"], $pos + 1, 100); $script_name = str_replace(".php", "", $script_name); include_once('dbtree.php'); $array = tree_to_array(0, table_categories); $var_smarty->assign('lastspacer', 0); $var_smarty->assign('cat_array', $array); // use the 'totals' table now $published_count = get_story_count('published'); $var_smarty->assign('published_count', $published_count); $categories = mysql_query("select *, count(*) as count from " . table_links . ", " . table_categories . " where category_lang='$dblang' and category_id=link_category group by link_category ORDER BY category_name ASC"); $categorylist = array(); while ($rows = mysql_fetch_array ($categories, MYSQL_ASSOC)) array_push ($categorylist, $rows);
$var_smarty->assign('categorylist', $categorylist); $var_smarty->assign('category_url', getmyurl('maincategory')); } $var_smarty->cache = $_caching; // set cache back to original value check_actions('do_sidebar'); return $var_smarty;}替换后的为9.7中的对应函数样子是这样的：
function do_sidebar($var_smarty) { // show the categories in the sidebar global $db, $dblang, $globals, $the_cats; $_caching = $var_smarty->cache; // get the current cache settings $var_smarty->cache = true; // cache has to be on otherwise is_cached will always be false $var_smarty->cache_lifetime = –1; // lifetime has to be set to something otherwise is_cached will always be false $thetpl = // check to see if the category sidebar module is already cached // if it is, use it if(isset($_REQUEST['category'])){ $thecat = sanitize($_REQUEST['category'], 3); }else{ $thecat = ''; } if ($var_smarty->is_cached($thetpl, 'sidebar|category|'.$thecat)) { $var_smarty->assign('cat_array', 'x'); // this is needed. sidebar.tpl won't include the category module if cat_array doesnt have some data }else{ if(isset($_REQUEST['category'])){$thecat = $db->get_var("SELECT category_name FROM " . table_categories . " WHERE `category_safe_name` = '".urlencode(sanitize($_REQUEST['category'], 1))."';");} if(!empty($_REQUEST['id'])) { $doing_story=true; } else { $doing_story=false; } $var_smarty->assign('UrlMethod', urlmethod); foreach($the_cats as $cat){ if($cat->category_id == $thecat && $cat->category_lang == $dblang && $cat->category_parent == 0) { $globals['category_id'] = $cat->category_id; $globals['category_name'] = $cat->category_name; } } $pos = strrpos($_SERVER["SCRIPT_NAME"], "/"); $script_name = substr($_SERVER["SCRIPT_NAME"], $pos + 1, 100);
$script_name = str_replace(".php", "", $script_name); include_once('dbtree.php'); $array = tree_to_array(0, table_categories); $var_smarty->assign('lastspacer', 0); $var_smarty->assign('cat_array', $array); // use the 'totals' table now $published_count = get_story_count('published'); $var_smarty->assign('published_count', $published_count); $categories = mysql_query("select *, count(*) as count from " . table_links . ", " . table_categories . " where category_lang='$dblang' and category_id=link_category group by link_category ORDER BY category_name ASC"); $categorylist = array(); while ($rows = mysql_fetch_array ($categories, MYSQL_ASSOC)) array_push ($categorylist, $rows); $var_smarty->assign('categorylist', $categorylist); $var_smarty->assign('category_url', getmyurl('maincategory')); } $var_smarty->cache = $_caching; // set cache back to original value check_actions('do_sidebar'); return $var_smarty;}