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Request #53424 passthru() and STDERR
Submitted: 2010-11-29 21:26 UTC Modified: 2010-12-04 17:04 UTC
From: myselfasunder at gmail dot com Assigned:
Status: Not a bug Package: Program Execution
PHP Version: 5.2.14 OS: Windows 7
Private report: No CVE-ID: None
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 [2010-11-29 21:26 UTC] myselfasunder at gmail dot com 
Description:
------------
Please also display STDERR output. This is a request specific for Windows. Obviously this isn't a problem under Linux.

Test script:
---------------
passthru('<command that only outputs STDERR>');


Expected result:
----------------
I expect everything from STDOUT and STDERR to be displayed.

Actual result:
--------------
Will output nothing (expect maybe a little whitespace).

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 [2010-11-30 06:28 UTC] dtajchreber@php.net
-Status: Open +Status: Bogus
 [2010-11-30 06:28 UTC] dtajchreber@php.net 
passthru("$cmd 2>&1");
 [2010-11-30 07:29 UTC] myselfasunder at gmail dot com 
Please re-read the original ticket:

"Please also display STDERR output. This is a request specific for Windows. Obviously this isn't a problem under Linux."

You've provided the well-known Unix/Linux solution. This solution is not supported under Windows.

Please re-open the ticket, even if you can't provide a solution at this time. This will save me the effort of opening another one.


Dustin
 [2010-11-30 09:02 UTC] jani@php.net
-Status: Bogus +Status: Open -Type: Bug +Type: Feature/Change Request
 [2010-11-30 09:05 UTC] jani@php.net 
See bug #41874.
 [2010-11-30 09:05 UTC] jani@php.net
-Status: Open +Status: Bogus
 [2010-11-30 13:53 UTC] dtajchreber@php.net 
Windows also supports redirection: 

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-
us/redirection.mspx?mfr=true
 [2010-12-04 16:39 UTC] myselfasunder at gmail dot com 
This solution does not work for Windows. Although adding the "2>&1" on to the end of the command doesn't induce an error, it still DOES NOT redirect STDERR. Try it.

Please just add the functionality.
 [2010-12-04 16:44 UTC] myselfasunder at gmail dot com 
..Also: This issue is occurring within the context of trying to implement FFMPEG (which outputs everything in STDER because of how it can be used for pipes). Even if Windows has some support for redirection, it's not complete enough to work for FFMPEG. Redirection has no effect.

Therefore, this passthru() needs to compensate in order to be functional for STDERR.
 [2010-12-04 17:04 UTC] pajoye@php.net 
it does, use:

somecmd.bat > log 2<&1
 
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