Support negative indexes for arrays and strings

I feel that for PHP to incorporate some of the convenience that Python offers is a good particularly with respect to attracting the upcoming generation. PHP needs an injection of new coolness to attract and captivate the imagination of young college-age people who are being exposed to Python as part of their CS curriculum. I think Easen's proposal for PHP to have negative indexing for strings (not arrays) is well-thought out, and conservative too. I think it would be an excellent addition. +1! Sincerely, Sharon