Ok so let’s get going:
1. Create the file “backup_database.php” and input the following code into it:
<?php exec(‘cd /home/your_user/backup/db/;mysqldump –add-drop-table -h localhost –user=your_user –password=your_pass database_name > `date +%y-%m-%d_%H-%M`.sql’); ?>

Sometimes the path to your home dir looks different than ‘/home/your_user/’, so execute the ‘pwd’ command like explained in my previous post

Here we use the command mysqldump in a tutorial that I wrote previously about the dumping the sql database from one host to another. Now the database will be saved directly on the server that is hosting your website

2. Create /backup/ and /backup/db/ directories via SSH or FTP if not created.

Of course you can use any names. But better do not create the /backup/ directory in the /public_html/ directory for security reasons

3. Upload “backup_database.php” to the /home/your_user/backup  directtory

If you upload backup_database.php to www.yoursite.com/backup_database.php by accessing it directly in your browser you will create a backup of your database.  However I do not recommend doing this First because someone can overload your space quota by accessing the backup_database.php many times and second because you probably don’t want to enter the URL in your browser every time you want to perform database backup.

4. Go to CPanel -> Cron Jobs and input the path to backup_database.php:

Click on the `Add new Cron Job` button…     and you are pimped out. In my case I added the option this cron job to be executed twice a day. In case you database is updated more often/rarely you can modify this setting to suit your needs.
You can also add option to save the dump of the database in tar format to save some space in your hdd quota by changing the script a bit.
Full database backup in tar format (save more space):
backup_database.php:
&lt;?php exec(‘FILE=`date +%y-%m-%d_%H-%M`;cd /home/ps3igri/backup/db/;mysqldump –add-drop-table -h localhost –user=your_mysql_user –password=your_pass db_name > $FILE.sql;tar czpf $FILE.tar $FILE.sql;rm -f $FILE.sql’); ?>
As you see here we use the ‘FILE’ variable to store information about the filename. We create a SQL Dump, then we archive it, and after that we delete the original file to save some disk space.
Good luck with the backup and see you next time

first i will show you how to use mysqldump to backup your database on your harddrive on your local computer under windows. Go to your command prompt -> Start -> Run -> write “cmd” -> hit enter
go to your mysql bin directory, in case that you use xampp, and it’s installed on c:\xampp, it should be in c:\xampp\mysql\bin
you can do that by typing “cd \” and then “cd xampp\mysql\bin” (i’m trying to write this tutorial as simple as possible so that everybody will get it )

after that, to backup your database on local mashine you should write:
mysqldump –add-drop-table -h localhost –user=root –password=yourpass yourDBname > OutputFile.sql

voilla

so if you want to backup your database to remote host the command gets a bit more sophisticated
here we go:

copy databse and it’s data from one server to another:
mysqldump –user=root –password=yourPassword –opt localDB | mysql -h 192.168.1.35 –user=root –password=remotePassword remoteDB

In our case we copy our local database “localDB” into the database “remoteDB” on the machine with 192.168.1.35

we can also do the command like this:
mysqldump -h 192.168.1.17 –user=test –password=12345 –opt remoteDB
| mysql -h 192.168.1.51 –user=root –password=bg_820918 remoteDB

in this case we copy the database “remoteDB” from remote host to another remote host in the database “remoteDB”

now you see how powerfull mysqldump really is, and that’s only few of the things it’s capable of
I hope this will was usefull for someone