实现MYSQL自动备份（windows计划任务）

<?php
if ($argc != 2 || in_array($argv[1], array('--help', '-?'))) {
?>
backup   Ver 0.01, for Win95/Win98/WinNT/Win2000/WinXP on i32
Copyright (C) 2000 ptker All rights reserved.
This is free software,and you are welcome to modify and redistribute it
under the GPL license

PHP Shell script for the backup MySQL database.

Usage: <?php echo $argv[0]; ?> <option>

   <option> can be database name you would like to backup.
   With the --help, or -? options, you can get this help and exit.
<?php
} else {
$dbname = $argv[1];
$dump_tool = "c:\\mysql\\bin\\mysqldump";
$rar_tool = "d:\\php4\\rar";
@exec("$dump_tool --opt -u user -ppassword $dbname > ./$dbname.sql");
@exec("$rar_tool a -ag_yyyy_mm_dd_hh_mm $dbname.rar $dbname.sql");
@unlink("$dbname.sql");
echo "Backup complete!";
}
?>