How to display SERP competition on page?

I want to display the amount of competing pages for a particular keyword phrase in Google search results.

For example the page might read

?The keyword example has about 588,000,000 competing pages?

Where the number 588,000,000 is dynamic since I have to this for many keywords.

Is there a way to scrape the ?Results 1 - 10 of about 588,000,000? off Google? API? Another source that shows similar data? My site runs PHP.

All feedback is appreciated.
Thanks!
-Eric

Yup. Write a simple php script to hit the Google URl with the search term in it (see: Curl) then strip HTML from the results, and grab whatever text is between "Results 1-10 of about " and " for "

Thanks TheHockeyGod,
Can you provide a bit more detail / example or resources? I'm still a bit of a PHP newb.

Edit: Looking for delete option. Can't find it...

@sho ??