| Re: redirect stdout and stderr to PHP variables? [solved] [message #176890 is a reply to message #176799] |
Wed, 01 February 2012 12:22  |
crankypuss
Messages: 147
Registered: March 2011
Karma:
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Senior Member |
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On 01/25/2012 12:47 PM, crankypuss wrote:
> I'm sure there's a way to do this, probably some simple syntax I've not
> run into and am too stupid to find in the manual or through google-fu or
> otherwise.
>
> I'd like to issue an arbitrary shell command in a subroutine and have it
> return an array that contains one element representing stdout and
> another element representing stderr.
>
> For example, using tar to deal with a bazillion files, error messages
> might not be seen when specifying verbose output; I'd like to collect
> them and display after stdout.
>
> I've not found any syntax, yet, for redirecting to a PHP variable rather
> than some file.
>
> tia.
Thanks for your help, folks. This seems to do the trick:
// executes $cmd as a separate process and returns the following:
// $result = null if unable to start process, else:
// $result["exit_code"] = exit code returned by $cmd
// $result["stdout"] = stdout written by $cmd
// $result["stderr"] = stderr written by $cmd
function sysCmd($cmd)
{
$result = array();
$descr = array();
$descr[0] = array("pipe", "r"); // stdin
$descr[1] = array("pipe", "w"); // stdout
$descr[2] = array("pipe", "w"); // stderr
$proc = proc_open($cmd, $descr, $pipes);
if (is_resource($proc))
{
fclose($pipes[0]); // no stdin data
$result["stdout"] = stream_get_contents($pipes[1]);
fclose($pipes[1]);
$result["stderr"] = stream_get_contents($pipes[2]);
fclose($pipes[2]);
$result["exit_code"] = proc_close($proc);
}
return $result;
}
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