Converting .htm to .php, Google see diff pages?

.php .htm google file name index

[horseatingweeds]

I'm about to convert my site from .htm to .php. Does Google see a difference?

My worry is that Google will see my renamed files, like whatnot.php, and see an identical page in its index, whatnot.htm, and not index the new .php page because it is essentially a duplicate, minus a heap of code.

I plan to make these changes to my google maps as well.

[g1smd]

Set up your server so that .html URLs are still parsed as being PHP scripts.

Google will see no differences.

[ogletree]

Don't change the name of your files. There is no reason to do that. Just put a line in your htaccess file.

AddType application/x-httpd-php .html

[g1smd]

That's the one.

[sniffer]

^ I remember when i first read this tip on WW, it was the best thing that happened that day