实现 win2003 下 mysql 数据库每天自动备份

<?  
//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.\r\n");  
@mkdir($nowdir);  

mysql_connect("localhost","$db_username","$db_password");  
$query=mysql_list_dbs();  


$command = '';  
while($result=mysql_fetch_array($query)){  
  $command .= dirname(__FILE__).'\..\mysql\bin\mysqldump --opt '."$result[Database] -u{$db_username} ".($db_password?"-p{$db_password}":"")." > $nowdir\\$result[Database].sql \r\n";  
  $command .= "echo dumping database `$result[Database]`... \r\n";  
}  
  $command .= "echo Winrar loading...\r\n";  

$command .= dirname(__FILE__)."\\WinRAR\\WinRAR.exe a -ep1 -r -o+ -m5 -df \"$nowdir.rar\" \"$nowdir\" \r\n";  

$command .= "echo OK!\r\n";  

$command .= "del mysqldumping_temp.bat\r\n";  

$fp = fopen('mysqldumping_temp.bat','w');  
fwrite($fp,$command);  
fclose($fp);  


//删除 5 天前的文件  
@unlink("$store_folder\\".date("Ymd",$time-86400*5).".rar");  
?>  

<?
//保存目录,路径要用反斜杠.您需要手动建立它.
$store_folder = ‘D:\database_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”;
?>

echo off  
php.exe mysql_backup.php  
if exist mysqldumping_temp.bat call mysqldumping_temp.bat