i want to give this type of coding in my website plz tell how can i give 404 error page like

in this url

http://www.google.com/m.php

Hi,

Try this.. open your notepad or any suitable php code editor. Paste codes below

ErrorDocument 404 /404.html 

Save the above as .htaccess , and then upload to your server.

Second step..
On your notepad again or html editor, create a new page similar to the google 404 page and name it 404.html

upload the 404.html to your server.

That's about it...