my problem was the following:
$integer = 2304200000;
echo $integer; //outputs 2.3042E+09
$float = (float)100000; //float
echo $float; //outputs 1E+05
this gives many weird results in calculation. I have faced this problem and this bug has eaten up a lot of time.So, I am others time regarding the big number problem in php 5.2.6.
If you use number_format or sprintf then you will get the number as aspected.
$integer = 2304200000;
$int = number_format($integer, 0, '.', '');
echo $int; //outputs 2304200000 as expected
$float = (float)100000 //float;
$float = number_format($float, 2, '.', '');
echo $float; //outputs 100000.00 as expected

