Hello,
Does anybody know what is google current algorithm or has a link to an article that describes it?
Thanks,
Ronit.

I don't think anyone truly knows except the people who work at Google. I can tell you one of the heaviest weighted factors in the algorithm is anchor text of incoming back links, followed by title tags and h1 tags.

Though The Exact Algo is never disclosed [ Otherwise it would not take any time for people to abuse it ] , but a friend of mine did an experiement on this... You may want to take a look at this page for the results that he got - http://www.seotown.com/showthread.php?t=100

Thank you for that link

The actual page rank is computed using a piece of maths originally discovered by Wei back in 1952 based on calculating the primary eigenvector of the connectivity matrix (which pages are connected to which others). There's a fairly techie page on it at http://www.mathworks.com/company/new...t02_cleve.html
The benefit of using this is that the pagrank is purely a function of the reputation of the pages that link to you and doesn't include any special weighting due to header tags. Special consideration for header tags is entirely fictional and anyone believeing in it should be burned at the stake as a heretic :-)

There are several factors that are utilized to create the Google algorithim but I am currently under the impression that age of incoming links and anchor text are two of the heaviest weighted factors.

can i get some simple search algorithm in php

Only Google's engineers know exactly what has been changed with current algorithm.

I believe their algo is regularly changing and enhanced, so outsiders do not know the exact algo. We can only make some informed guess and experiments.

you can get information at

http://www.googleblog.blogspot.com