/*/////////////////////////
#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($query)){
system (dirname(__FILE__).'\..\mysql\bin\mysqldump --opt '."$result[Database]
-u{$db_username} ".($db_password?"-p{$db_password}":"")." >
$nowdir\\$result[Database].sql");
echo "dumping database `$result[Database]`...\n";
}
echo "\nWinrar loading...\n";
system( dirname(__FILE__)."\\WinRAR\\WinRAR.exe a -ep1 -r -o+ -m5 -df \"$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