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Full Discussion: Linux PHP Executable Output Issue with IE
Top Forums UNIX for Dummies Questions & Answers Linux PHP Executable Output Issue with IE Post 302365654 by Corona688 on Tuesday 27th of October 2009 06:00:39 PM
Old 10-27-2009
Is that really a .bat file? What kind of server is this?

Your PHP script as is prints "correct" output even when the file isn't written. If tee fails to open batch.output for some reason, it will print an error message to standard error(which you will NOT see on your web browser) and continue to write to other outputs. I'd leave out the tee and read back from the file with PHP. That'll save you an extra process, too.

Code:
<?php
$lastline=system("batch.bat $var1 $var2 2>&1 > /batch.output", $retval);
if($reval != 0)
  die "Command failed:  Error code $retval, '$lastline'";

$fp=fopen("/batch.output", "r");
echo "<pre>";
fpassthru($fp);
echo "</pre>";
fclose(fp); ?>

That should redirect stderr to stdout where $lastline can pick it up, and the file to /batch.output

I have no idea why the file isn't created for IE, but getting an actual error message always helps.
 

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LEARN ABOUT XFREE86

tee

TEE(1)								   User Commands							    TEE(1)

NAME

       tee - read from standard input and write to standard output and files

SYNOPSIS

       tee [OPTION]... [FILE]...

DESCRIPTION

       Copy standard input to each FILE, and also to standard output.

       -a, --append
	      append to the given FILEs, do not overwrite

       -i, --ignore-interrupts
	      ignore interrupt signals

       -p     diagnose errors writing to non pipes

       --output-error[=MODE]
	      set behavior on write error.  See MODE below

       --help display this help and exit

       --version
	      output version information and exit

   MODE determines behavior with write errors on the outputs:
       'warn' diagnose errors writing to any output

       'warn-nopipe'
	      diagnose errors writing to any output not a pipe

       'exit' exit on error writing to any output

       'exit-nopipe'
	      exit on error writing to any output not a pipe

       The default MODE for the -p option is 'warn-nopipe'.  The default operation when --output-error is not specified, is to exit immediately on
       error writing to a pipe, and diagnose errors writing to non pipe outputs.

AUTHOR

       Written by Mike Parker, Richard M. Stallman, and David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report tee translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/tee>
       or available locally via: info '(coreutils) tee invocation'

GNU coreutils 8.28						   January 2018 							    TEE(1)
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