jo opp wrote:
> Hello!
> 
> $var1= 2155243640%31104000;
> $var2= 2147309244%31104000;
> 
> echo $var1 // Return -24651656
> echo $var2 // Return 1133244
> 
> $var2 return the correct result, but $var1 is wrong (the correct
> result is 9067640)

Probably because the maximum signed 32 bit integer value is
2,147,483,648

if you are dealing with numbers that large, consider using some 
arbitrary precision math functions that can work with as large of 
numbers as you need.


http://us3.php.net/manual/en/refs.mathcrypto.math.php



-- 
Chris W
KE5GIX

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