I work on windows 7. I try to execute the Gnuwin32 grep
command from within a PHP script like so var_dump(shell_exec("grep"))
, so I can see if it works or not. Instead of the expected output of usage:
and things like that I get null
.
C:\gunwin\bin
is on my Windows path and on the PHP include_path
grep
works from the command lineshell_exec('dir')
(or any other 'regular' windows-environment command) works as expectedI'm sure I'm missing something obvious here, but I can not find out what it is. Does anyone have a suggestion?
EDIT: something strange happened. I tried shell_exec('wget')
, just for the sake of it. This works as expected. After that, I tried shell_exec('grep --help')
and this actually returns the output I expected. I'm a little confused now.
grep, without arguments, writes nothing in stdout, but show two lines (instructing to use --help) on stderr, which is not returned with shell_exec.