Well, I have to call a python script from a php one but it does nothing. I've been searching but i couldn't fix it. The script creates 2 files and writes things in the terminal.
Here's my code:
exec('/usr/local/bin/python /usr/local/script/myScript.py '.$path.' '.$specie.' '.$pvalue.');
Thank you very much.
Related
I have a python script, which I am calling from the php file.
My output is coming as expected, when run as python test.py
But when I am trying to run the php file through the browser, I am not getting the output.
However, on commenting the following lines, I am able to get some results. But I want these lines to run.
with open(filen,'w') as f:
f.write(str("write date"))
I am not sure, what's happening. Can anyone explain what difference its making when php reaches these lines.
Thanks
the question is not clear. I'm guessing you want to execute a python script from php. Your python script does not output anything but write to a file.
executing a python file from php
<?php
print shell_exec("python test.py");
?>
this question may help you if the code above doesn't work: php shell_exec() command is not working
please edit your question for a more accurate response.
I have a free webspace hosted by altervista where i have one script python and one script php. What i want to do is call the python script using the php script. I googled for a solution and i found several questions about it, i tried different proposed solutions but no one worked for me.
Here the php script code:
<?php
$command = escapeshellcmd('test.py');
$output = shell_exec($command);
echo $output;
?>
and here the python script code:
print("Hello")
When i run the php script nothing happens.
What's wrong?
Thanks
Your hosting company might have disabled the shell-exec function for security reasons. I'm not saying it is the case, but you should check that first before even trying to run shell_exec.
Seealso:
PHP - How to know if server allows shell_exec
Plus, back in 2012, it wasn't possible with Altervista...
Last night I spent 5.5 hours trying make PHP execute and receive the output of Virtualenv’ed Python script. Nothing worked; except for scripts that were not Virtualenv’ed.
What I am trying to do:
I am trying to make PHP call a virtualenv’d install of the Newspaper lib output text when I call it.
What I have now:
PHP: (updated)
<?php
$output = exec('newspaper2/bin/python3 /var/www/html/components/python/test.py 2>&1', $output2);
print_r(error_get_last());
echo $output2;
echo $output;
…this works when using a non-virtualenv script
Python: (updated)
from newspaper import Article
url = 'http://example.com/'
article = Article(url)
article.download()
article.html
article.parse()
article.authors
article.publish_date
string = article.text
print(string)
What the issue is:
I can run the script that PHP is running from the command line and it outputs just fine.
What I have tried:
With PHP, (I have tried all the “exec” calls for PHP) it cannot seem to open the virtual environment and returns nothing.
Before the script I have called “python3” and a few other things to no avail.
Yes, I have chmoded it to be executable…
I feel like this should be so simple.
I have tried suggestions on other posts and all over the web to no avail.
Questions:
Did I set up the virtualenv wrong?
At the top of the Python script, instead of the “#!/usr/bin/env python3” should I call something else?
If so, where do I find it? Should I start from scratch and will that
help?
Thank you for your help;
PS: I am running Ubuntu16, PHP7 and I need to use Python3
In the virtualenv'ed scripts (i.e. installed via the setuptools' entry-points), you should not touch the shebang (#!... first line). It is populated by the virtualenv & setuptools & related tools.
If you specify your own shebang, then it is not virtualenv'ed script. In that case, call python directly:
exec('/path/to/venv/bin/python3 /var/www/html/components/python/testing.py');
Alternatively, you can put the absolute path to the virtualenv's python binary to the py-script, but this does not look a good idea.
Also, remember that virtualenvs are non-relocatable. So they should stay in the path where they were created.
Also note that exec() returns only the last line of the output. You probably want shell_exec() or exec('...', $output) to get the whole output.
Also, it is unclear what happens with your script, and what is being printed on stderr. Try this command to see what is the error:
exec('/path/to/script 2>&1', $output)
#OR:
exec('/path/to/venv/bin/python3 /path/to/script 2>&1', $output)
OK, I finally figured it out and learned a lot in the process. The newspaper lib that I am using by default tries to write to the base of the users home directory. In this case, it was attempting to write to www-data, /var/www.
To fix this:
Go to the settings.py file in the newspaper library.
Edit the variable DATA_DIRECTORY = '.newspaper_scraper' and change it to DATA_DIRECTORY = '.path/to/writable/directory'
Save the file and you should be good to go.
I have no idea why it was not returning the errors that would have explained this sooner.
Hope this helps anyone else.
Thank you so much Sergey Vasilyev for your help. I appreciate it greatly.
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 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');
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()
I am trying to run a shell script from a php script.
I have complete control of the environment (unix on mac), I should have all the permissions, etc. set correctly.
The web script is in /htdocs/
The shell script can be executed from anywhere so when I go to /htdocs/ in the shell, I can easily run it like this:
$ my_shellscript
.. but when my php script (which is located in htdocs) tries to call it:
shell_exec('my_shellscript');
I get nothing.
I have proven the script can be called from that location and I have temporarily granted full access to try to get it working somehow. I am going crazy, please help.
If you know of some other way of triggering a shell script via the web that would be fine.
Thanks in advance.
well i got few weeks same problem, the solution is to check if the apace has the permission to execute your script. You could also try to run the script in php cli.
Since it is a shellscript, it needs to be invoked with the path prefix. My guess is you need to do this:
shell_exec('./my_shellscript');
First thing: make sure php isn't running in Safe Mode
Next thing: Try running it with the exec() function and using the full path (e.g. /var/www/htdocs/my_shellscript)
Try doing
echo shell_exec('my_shellscript 2>&1');
which will capture the script's stderr output and print it out. If something inside the script is failing, this output would otherwise be lost when not being run interactively.