How to show number results found for search query in my site?

PHP
1

How to show number results found for search query in my site?
http://search.yahoo.com/search;_ylt=A0geutkDOWxLDoUBfbVXNyoA?p=site:mixx.com+linkdomain:cnet.com

2

SQL_CALC_FOUND_ROWS

3

Also try this way http://www.google.com/search?hl=en&q=site%3Amixx.com+linkdomain%3Acnet.com&sourceid=navclient-ff&rlz=1B3GGLL_en___BD365&ie=UTF-8

4

“Your search - site:mixx.com linkdomain:cnet.com - did not match any documents”