/*///////////////////////// 

#FileName: mysql_backup.php 

#Author: faisun 

#Website: http://www.softpure.com 

////////////////////////*/    

//保存目录,路径要用反斜杠.您需要手动建立它. 

$store_folder = 'D:databse_backup'; 

//用户名和密码 

//该帐号须有操作[所有]的数据库及FILE的权限 

//否则有些数据库不能备份. 

$db_username = "root"; 

$db_password = ""; 

$time=time(); 

$nowdir = "$store_folder".date("Ymd",$time).""; 

if(file_exists("$nowdir.rar")) die("File exists.n"); 

@mkdir($nowdir); 

mysql_connect("localhost","$db_username","$db_password"); 

$query=mysql_list_dbs(); 

while($result=mysql_fetch_array($query)){ 

system (dirname(__FILE__).'..mysqlbinmysqldump --opt '."$result[Database] -u ".($db_password?"-p":"")." > $nowdir$result[Database].sql"); 

echo "dumping database `$result[Database]`...n"; 

} 

echo "nWinrar loading...n"; 

system( dirname(__FILE__)."WinRARWinRAR.exe a -ep1 -r -o+ -m5 -df "$nowdir.rar" "$nowdir" " ); 

//删除 5 天前的文件 

@unlink("$store_folder".date("Ymd",$time-86400*5).".rar"); 

echo "nOK!n"; 

>

  php.exe mysql_backup.php