'PHP fsyr' is apparently a well searched term when looking at G's term suggestion tool for 'PHP'. 'fsyr' is apparently a type for 'date' which seems fairly obvious from a qwerty keyboard layout.
However, when you search for it, there's no warning that you've been 'auto-corrected' and Google shows results for 'php date'.
The closest you get to the correction is a blurb at the bottom of the SERPs rather than the top:
http://www.google.com/search?q=php+fsyr
Tip: These results include the word "date". Show results that include only "fsyr".
Is this quite common? I've been used to Google showing corrections at the top of the page whenever it thinks I've mistyped something.