有没有人使用index.html？

Question

As a matter of precaution i always, now, name my index page: index.php, I do this whatever the project. Does anyone use index.html regularly? Can you be concretely sure you'll never need PHP for the page? Are there any performance issues encountered by always using index.php over index.html?

Answer 1

For servers that don't support PHP, avoid the .php extension unless you are trying to mask the server technology by faking a .php extension.

For static sites it doesn't really matter which extension you use as long as you know your server is configured correctly (see Dominic Rodger's answer). For that matter, not many of your visitors will care whether it's a static or dynamic site. Also, some dynamic sites accept URLs that end in .html as opposed to .php.

Are there any performance issues encountered by always using index.php over index.html?

The PHP interpreter will immediately hand your output back to your web server if there is absolutely no PHP code in it (all it does is send some engine-specific headers), so the performance difference is negligible if at all existent.