MySql升级数据库没有升级遇到Your privilege table structure seems to be older than this MySQL version

将下面的内容另存为文件，放到服务器上执行就可以了，遇到这样的问题往往是升级的数据库，但把旧数据库所有的库全部考过来，而不是把用户库考来造成的。

错误提示如下：

Warning: Your privilege table structure seem to be older than this MySQL version! 
Please run the script mysql_fix_privilege_tables that should be included in your MySQL server distribution to solve this problem! 

<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpw = 'password';
$db = new dbstuff;
$db->connect($dbhost, $dbuser, $dbpw, 'mysql');
unset($dbhost, $dbuser, $dbpw);
$match = explode('.', $db->version());
$mysql_verson = sprintf('%d%02d%02d', $match[0], $match[1], intval($match[2]));
$mysql_fields = array();
$sql = 'SHOW FULL FIELDS FROM user';
$query = $db->query($sql);
while($mysql = $db->fetch_array($query)) {
$mysql_fields[] = $mysql['Field'];
}
if($mysql_verson >= 40002) {
if(!in_array('Show_db_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Show_db_priv` enum('N','Y') NOT NULL default 'N' AFTER `Alter_priv`;");
}
if(!in_array('Super_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Super_priv` enum('N','Y') NOT NULL default 'N' AFTER `Show_db_priv`;");
}
if(!in_array('Create_tmp_table_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Create_tmp_table_priv` enum('N','Y') NOT NULL default 'N' AFTER `Super_priv`;");
}
if(!in_array('Lock_tables_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Lock_tables_priv` enum('N','Y') NOT NULL default 'N' AFTER `Create_tmp_table_priv`;");
}
if(!in_array('Execute_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Execute_priv` enum('N','Y') NOT NULL default 'N' AFTER `Lock_tables_priv`;");
}
if(!in_array('Repl_slave_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Repl_slave_priv` enum('N','Y') NOT NULL default 'N' AFTER `Execute_priv`;");
}
if(!in_array('Repl_client_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Repl_client_priv` enum('N','Y') NOT NULL default 'N' AFTER `Repl_slave_priv`;");
}
}
if($mysql_verson >= 50001) {
if(!in_array('Create_view_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Create_view_priv` enum('N','Y') NOT NULL default 'N' AFTER `Repl_client_priv`;");
}
if(!in_array('Show_view_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Show_view_priv` enum('N','Y') NOT NULL default 'N' AFTER `Create_view_priv`;");
}
}
if($mysql_verson >= 50003) {
if(!in_array('Create_routine_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Create_routine_priv` enum('N','Y') NOT NULL default 'N' AFTER `Show_view_priv`;");
}
if(!in_array('Alter_routine_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Alter_routine_priv` enum('N','Y') NOT NULL default 'N' AFTER `Create_routine_priv`;");
}
if(!in_array('Create_user_priv', $mysql_fields)) {
$db->query("ALTER TABLE user add `Create_user_priv` enum('N','Y') NOT NULL default 'N' AFTER `Alter_routine_priv`;");
}
}
echo '完成';
class dbstuff {
var $querynum = 0;
function connect($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0) {
if($pconnect) {
if(!@mysql_pconnect($dbhost, $dbuser, $dbpw)) {
$this->halt('Can not connect to MySQL server');
}
} else {
if(!@mysql_connect($dbhost, $dbuser, $dbpw)) {
$this->halt('Can not connect to MySQL server');
}
}
if($this->version() > '4.1') {
global $charset, $dbcharset;
if(!$dbcharset && in_array(strtolower($charset), array('gbk', 'big5', 'utf-8'))) {
$dbcharset = str_replace('-', '', $charset);
}
if($dbcharset) {
mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary");
}
if($this->version() > '5.0.1') {
mysql_query("SET sql_mode=''");
}
}
if($dbname) {
mysql_select_db($dbname);
}
}

function select_db($dbname) {
return mysql_select_db($dbname);
}
function fetch_array($query, $result_type = MYSQL_ASSOC) {
return mysql_fetch_array($query, $result_type);
}

function query($sql) {
if(!($query = mysql_query($sql))) {
$this->halt('MySQL Query Error', $sql);
}
return $query;
}
function version() {
return mysql_get_server_info();
}
function halt($message ='', $sql ='') {
echo $message.$sql;
exit;
}
}
?>

(完）