Description:
------------
the demo code procduces the expected results on a gentoo 32 bit install (amd 2400+) dev-lang/php-5.2.6-r1
but fails with the actual results on a 64bit install (intel xeon) from the same ebuild

the error can reproduced on an older ubuntu PHP 5.2.3 running 64bit as well


the loop and sum was only added to reduce the code (could do 20 round of the calculated values as well for the same result)

Reproduce code:
---------------
php -r 'for($i=0;$i<20;$i++) echo round($i+0.015,2)."\n";'

Expected result:
----------------
0.02
1.02
2.02
3.02
4.02
5.02
6.02
7.02
8.02
9.02
10.02
11.02
12.02
13.02
14.02
15.02
16.02
17.02
18.02
19.02


Actual result:
--------------
0.02
1.01
2.02
3.02
4.01
5.01
6.02
7.02
8.02
9.02
10.02
11.02
12.02
13.02
14.02
15.02
16.02
17.02
18.02
19.02