Re: [PHP-DEV] RE: PHP 4.0 Bug #8465 Updated: Cannot exec, system, passthru, backticks From: Andi Gutmans (andi <email protected>)
Date: 12/28/00

popen() doesn't work in the environment. In fact I don't think it works in
any non-console environment. The correct way of fixing this is to implement
an alternative with CreateProcess().
It has been discussed before but no one has had time to get around to it.

Andi

At 07:34 PM 12/28/00 -0500, Che Gonzalez wrote:
> You example does not work either in CGI mode. I originally tried
>backticking a `perl -v` normally and with the absolute path. I understand
>cmd /c, but I wasn't even trying to use that. I'm trying to execute some
>perl 3des functions since the mcrypt library hasn't been ported to PHP on
>Win32. I perused the source and I think there should be some testing on
>'virtual_popen' in 'tsrm_virtual_cwd.c'. I see that you are not using
>CreateProcess, but you are _popen. I know there are issues when spawning
>processes from isapi, but maybe CreateProcess detached and capturing the
>output might work. Its just an idea... I not very knowledgeable with isapi.
>As far as your 'I'll do us both a favo!(u)r and ignore your other comments'
>comment, I don't think it should be ignored. I hate ASP with a passion and
>due to my roots in perl... I have found a home with PHP. I hope that we can
>put ASP out of commission.
>
>-----Original Message-----
>From: Bug Database [mailto:php-dev <email protected>]
>Sent: Thursday, December 28, 2000 6:17 PM
>To: che <email protected>
>Subject: PHP 4.0 Bug #8465 Updated: Cannot exec, system, passthru,
>backticks
>
>
>ID: 8465
>Updated by: lyric
>Reported By: che <email protected>
>Status: Open
>Bug Type: Program Execution
>Assigned To:
>Comments:
>
>"echo" is not a command under windows, rather something built into the shell
>(cmd.exe). Hence the error message is correct - you can't run a command that
>doesn't exist. You should use something like "cmd /c echo hello world".
>
>I'll do us both a favour and ignore your other comments
>
>Previous Comments:
>---------------------------------------------------------------------------
>
>[2000-12-28 17:27:44] che <email protected>
><?php
> print `echo hello world`;
>?>
>
>I have tried exec, backticks, system, passthru, and they all do not work.
>When running the CGI version, there is no message displayed. When running
>the isapi version, I get the error message "Warning: Unable to fork [echo
>hello world] in c:inetpubwwwroothorus.atlantic.nettest.php on line 3". It
>seems that this has been going on for a while now. "CreateProcess" is a
>very simple Windows API call. If PHP is going to beat ASP, this needs to be
>resolved.
>
>
>
>---------------------------------------------------------------------------
>
>
>Full Bug description available at: http://bugs.php.net/?id=8465
>
>
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---
Andi Gutmans <andi <email protected>>
http://www.zend.com/

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