[acqq]

It's "tagged" by Google. When I search php from the iPhone I get:

"PHP: Hypertext Preprocessor

php.net/

This site may harm your computer.

Server-side HTML embedded scripting language. It provides web developers with a full suite of tools for ..."

Google inserts the "harm" note.

[bhhaskin]

Yes, but there are quite a few ways to get flagged by Google.