Can PHP determine if the STDOUT for a CLI script is being redirected?

Hi.

Is there a simple way for a CLI based PHP script to determine if its
output is being redirected to a file or piped through a filter (find,
sort, etc.)

I'm using ANSI escape sequences to colour the output (all working very
nicely), but I want to suppress the codes if the output is being
filtered or redirected to a file.

I've been told about the posix_isatty() function, but as Windows is
not POSIX, I'm looking for a windows mechanism.

I've tried stream_get_meta_data(STDOUT), but it doesn't provide
anything different when used with > or with |.

Any other ideas?

Regards,

Richard Quadling.

--
-----
Richard Quadling
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
"Standing on the shoulders of some very clever giants!"

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Re: Can PHP determine if the STDOUT for a CLI script isbeing redirected?

Richard Quadling wrote:
> Hi.
>
> Is there a simple way for a CLI based PHP script to determine if its
> output is being redirected to a file or piped through a filter (find,
> sort, etc.)
>
> I'm using ANSI escape sequences to colour the output (all working very
> nicely), but I want to suppress the codes if the output is being
> filtered or redirected to a file.
>
> I've been told about the posix_isatty() function, but as Windows is
> not POSIX, I'm looking for a windows mechanism.
>
> I've tried stream_get_meta_data(STDOUT), but it doesn't provide
> anything different when used with > or with |.
>
> Any other ideas?
>
> Regards,
>
> Richard Quadling.
>
Windows does have isatty() function. Perhaps the functions of the posix
extension which
make sense should be ported.



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