批量修改数据库表前缀

批量修改数据库表前缀

<meta charset="utf-8"/>
<!-- 遍历所有的数据表改表前缀的程序文件 -->
<?php
define('DB_NAME', 'animeclub');
define('OLD_PREFIX','emlog_'); 
define('NEW_PREFIX','anime_');
set_time_limit(0) ; 
mysql_connect("localhost", "root", "") or die("Could not connect: " . mysql_error());
mysql_query("SET NAMES 'utf8'"); 
mysql_select_db( DB_NAME ) ;
$sq = "SHOW TABLES" ; 
$result = mysql_query($sq);
$I = 1 ; 
while ($row = mysql_fetch_assoc($result)) {
    $oldT = $row['Tables_in_'.DB_NAME] ; 
    if(strrpos($oldT, OLD_PREFIX ) === 0 ){
        $newT = str_replace(OLD_PREFIX, NEW_PREFIX , $oldT) ;
    }
    if(isset($newT)){
        $resql = "RENAME TABLE {$oldT} TO $newT " ; 
        $rt = mysql_query($resql) ; 
        $c = $rt ? "<font color='green'>成功更改{$I}条记录·····从{$oldT}到{$newT}</font><br/>" : "<font color='red'>更改表名称{$oldT}到{$newT}失败</font><br/>" ; 
        echo $c.'<br/>' ; 
    }
    $I++ ; 
    continue ;  
}
echo "<hr/><p>处理完成-----------------over....</p>" ; 
?>