Re: & behaves differently

fritz-bayer@web.de wrote:
> Hi,
>
> why does the php expression
>
> $result = 5543039447 & 2147483648;
>
> when executed evaluate to 0, whereas the perl expression
>
> $same = 5543039447 & 2147483648 ;
>
> evaluate to 2147483648 ???
>
> Fritz
>

Because Perl is using 64 bit integers and PHP is using 32 bit integers.

2147483648 is not a valid value in 32 bit arithmetic. The largest value
you can have is 2147483647.

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Jerry Stuckle
JDS Computer Training Corp.
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