Posted by Jerry Stuckle on 07/08/06 01:26

Robert S wrote:
> I would like to display error messages put out by shell commands. For
> example the following code gives no output and the array $output has no
> values:
>
> <?php
> exec( 'lss', $output );
> var_dump( $output );
> ?>
>
> ..assuming that I don't have an executable called 'lss' on my computer.
>
> The equivalent on the command line displays the error message:
>
> # php -r 'exec( "lss", $output );'
> # sh: lss: command not found
>
> How do I get the exec() command to display errors?
>
> I've tried `exec( 'lss 2> /dev/stout', $output );' with no success.
>

2> redirection is a shell function, not the OS. You'll need to use
shell_exec() to allow the redirection.

Also, the syntax should be 2>&1. That way if stdout is also redirected
stderr will follow.

--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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