Re: Octave 3.8.0 and PHP

[eykiriku]

FROM PHP:
The command passed to shell_exec for example 

$cmd = "octave3.8 -q --eval 'cd '/path/to/file/';Myfile;' 2>&1 ";

is executed properly but the print function (inside Myfile.m), still not
work. I got the same errors like the previous post...error: fputs: invalid
stream number = -1 etc.... 
The same call from the terminal works properly till the end, hence a plot
pops up and then an image called plot.png is correctly saved to the desired
path.

Regarding your suggestion of using the saveas command. Whenever I add the
saveas command the output is:
parse error: syntax error >>> /path/to/file/....
In my case I need also need to pass a parameter (a string) to the Myfile,
and whenever I use the --eval option the error arises again. 
The command I executed are here below. 

SAVEAS CASE:
$cmd = "octave3.8 -q --eval 'cd '/path/to/file/'; Myfile; saveas(1,
'/save/path/plot.png')' 2>&1 ";

PASSING AN ARGUMENT CASE:
$cmd = "octave3.8 -q --eval 'cd '/path/to/file/'; Myfile
/path/to/file/arg_file.txt' 2>&1 ";
or 
$cmd = "octave3.8 -q --eval 'cd '/path/to/file/';
Myfile('/path/to/file/arg_file.txt')' 2>&1 ";
or 
passing a variable containing the string :'/path/to/file/arg_file.txt'

All this could be solved if I am able to make PHP execute the same commands
I can execute from the terminal. And so avoiding the --eval function or (of
course understanding what the syntax error is). 

Since the commands run fine from the terminal (as root), I am guessing that
could be that PHP doesn't have the privileges to open a plot from Octave and
save the figure to a folder (the user I use in PHP has root privileges).
Could it be? 

Thanks in advance



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