| Re: Pipe the content of a variable to a process [message #173048 is a reply to message #173046] |
Fri, 18 March 2011 19:54   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
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Senior Member |
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On 3/18/2011 3:21 PM, Marco wrote:
> On 2011-03-18 Jerry Stuckle<jstucklex(at)attglobal(dot)net> wrote:
>
>> Are you running your test from the CLI? Or are you trying to run it as
>> part of the web page?
>>
>> If the latter - are you putting out valid html? Have you looked at the
>> document source to see what's there?
>
> At first I tried putting it into a (valid) web page. During the creation of
> the minimal example I removed all the html stuff. I sent the complete script
> in my second post in this thread. When I look directly at the source I just
> see the »0« (echo $return_value . "\n";). And when I redirect stdout and
> stderr to a file there's a »0« in file_stdout and file_stderr is empty.
>
> I have absolutely no clue what's going on here, since it works with »cat« as a
> process and gnuplot works with »passthru«. That »cat« works means that my
> workflow with the pipes is right and that gnuplot works with »passthru« means
> that gnuplot is working inside PHP.
>
> Thanks for your help, I hope we can get it solved.
>
> Marco
>
OK, I downloaded and installed gnuplot on my system. Change this line:
$stdin_data = "set terminal svg;plot sin(x)\n";
Note the newline char at the end.
It works for me.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
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