Redirect 404 page to homepage, harm ?

I'm using this php code to redirect all 404 error pages to my homepage

Is there any bad from this ?

header("HTTP/1.1 301 Moved Permanently");
header("Location: http://www.mysite.com");


(brw, im using wordpress)

thank you.

 

nope, perfectly good idea, your juices are spreading towards your mainpage now

 

Likely not a terrible idea but I would stick a clever html sitemap on the 404 instead

hope that helps,
Nigel