There’s a big difference between a redirect that uses a 301 and a 302 code on a website. If you don’t know the difference, you should find out.
301 says “This stuff has moved permanently and you shouldn’t come here anymore.”
302 says “You just need to go here, but this place will still answer you later.”
The appropriate use isn’t too complicated if you understand those two little statements. Within a web application there are many redirects that take place. If you use the 301 in these situations web browsers might get confused and your application won’t work properly.
By default the Zend Framework action helper aptly called “redirector” defaults to using 302′s; which is fine for most cases. But if you happen to be in a refactoring mode and rearranging your code and url structure it’s super important to use 302′s or your search engine rankings can fall right off the table.
Telling the _redirect helper to use a 301 code is really quite easy:
Unfortunately it’s a bit strange, because at first you think you can just use ‘$this->_redirect(‘destination’, code); but you can’t and that sucks. If you have multiple case redirects and some might be 301′s or 302′s you should make sure you set the code back before redirecting.