Octave script through php windows

Question

I am trying to run an octave script through PHP. I already googled and found some results but none of them are working for me. I tried with exec() and system(). I even created a batch file which calls 'octave myScript.m" and called this bat file using system() of PHP but it doesnt seem to work. In the browser page I am just seeing 'C:/FOLDER_PATH>octave myScript.m". The octave script simply creates a new file and writes some text to it. When i directly run the bat file (by double-clicking on it), the file is getting created properly. I also added folder path to octaverc file but it doesnt seem to work. I need to do some image processing in octave for which I already wrote the script. I need to invoke this script on a client request and send the result to back the client. I am checking the invocation process through a sample script which as I mentioned earlier creates a new file. What am I doing wrong?

My php code is this:

$cmd = "cmd /c C:\PATH_TO_BAT_FILE\myBat.bat";
exec($cmd,$output);
system($cmd);
echo implode ("\n",$output);

Note that my path contains double backslashes to avoid escape sequence characters

My bat file is this

octave temp.m

My octave code(temp.m) is this

fid = fopen("helloScript.txt",'w');
fprintf(fid,"Hello world!");
fclose(fid);

Ouput on the webpage is this:

C:\PATH_TO_BAT_FILE>octave temp.m C:\PATH_TO_BAT_FILE>octave temp.m

I can see in the task manager that a new process is getting created whenever I run the PHP script in browser (I am guessing that it is cmd). Also, when i change my bat file to

echo hello

I am able to see the following in my browser page

 C:\PATH_TO_BAT_FILE>echo hello hello C:\PATH_TO_BAT_FILE>echo hello hello

So this could mean that the bat file is getting executed properly. But when I replace the bat file script with 'octave MY_FILE.m' I am not able to see the output. It may mean that my octave is not configured properly? or is there something I am missing?

Any help would be appreciated.

Thanks

If you can see php sourcecode in the source then you dont have php enabled. — Lawrence Cherone
– Lawrence Cherone, Commented Jan 22, 2014 at 5:20
Its what I deduced from: In the browser page I am just seeing 'C:/FOLDER_PATH>octave myScript.m". — Lawrence Cherone
– Lawrence Cherone, Commented Jan 22, 2014 at 5:30

Panama Jack · Accepted Answer · 2014-01-22 05:37:18Z

0

If you are going to run the batch file to create it in php then the php command should be like this.

exec('cmd.exe /c C:\path\to\test.bat');

edited Jan 22, 2014 at 5:37

answered Jan 22, 2014 at 5:22

Panama Jack

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4 Comments

BaluRaman Over a year ago

I already tried that. It is not working. My php code is this:

Lawrence Cherone Over a year ago

Would it not be cmd.exe /c C:\\path\\to\\test.bat? else your get tabs for the \t

Panama Jack Over a year ago

@LozCherone Yes I believe you are right, it shouldn't need to be escaped unless you use double quotes. Changed it.

BaluRaman Over a year ago

edited the question. Hope it makes my question clearer

BaluRaman · Accepted Answer · 2014-01-23 05:37:12Z

0

This is embarassing but I solved it by giving full path. In the bat file I specified the complete path of the octave.exe (C:\Software\PATH_TO_OCTAVE.EXE) and the complete path of the '.m' file. In my php, I just used exec()

answered Jan 23, 2014 at 5:37

BaluRaman

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