Hi I'm running an Rscript with PHP exec and it is behaving strangely.......It launches R but throws an error at the following line:-
filein = filein[,c("id","bank","trans_date","description","description_2",
"description_3","description_4","description_5" ,"type",
"debit","credit","statement_balance", "cleared_balance",
"debit_int_rate","credit_int_rate","category")]
This simple rearranges the columns in a data-set.
It throws the following error:-
Error in
[.data.frame`(filein, , c("id", "bank", "trans_date", "description",
: undefined columns selected
However I run the same script from command-line it runs without any error.
(I'm running the Rscript on a ubuntu 14.04 machine with PHP5......also when I run the same script on a windows machine from PHP it also runs perfectly)
Anybody have any ideas why this is?
Thanks for all of your help....So it wasn't a permissions issue(I had fixed those previously).......the issue was:----The command passed to commandline by PHP exec was
sudo /Rscript /home/xin/Documents/ClassificationApp/ClassificationAllInOne.R "http://localhost/categorisation/public/classification/data/1423746975.json"
However the argument that was received by R was "localhost/categorisation/public/1423746975.json2";
For some reason the Ubuntu/PHP combination added a 2 to the end of the argument string....I added a line in ClassificationAllInOne.R to strip the 2 and it worked perfectly
Related
I want to run my python3 script using php webpage i used shell_exec() for that and it work fine with commands ex- ls pwd.
my python script just create a .csv file with the current date.
when i run my python3 script using (ubuntu) terminal/ vs code its work fine.
But when i try to run python3 test.py as a command its throw (xampp is running my script using user daemon)
error
[/usr/bin/python3: symbol lookup error: /usr/bin/python3: undefined symbol: XML_SetHashSalt ]
xampp is running my script using user daemon
i tried to give proper permission to the user daemon
EDIT - Adding new info at the top for visibility. The www-data user can't use the exec() command. All attempts return a 127 error.
I setup a simple script that is just this
<?php
$res = exec("echo EXEC", $res1, $res2);
var_dump($res);
var_dump($res1);
var_dump($res2);
?>
When executed via the application (which of course runs as www-data) this returns the 127 error code.
When executed via this command it runs flawlessly sudo -u root php testExec.php
When executed via this command it again returns the 127 error code sudo -u www-data php testExec.php
Original Question
I can only seem to get the error code 127 back when trying to use the exec command in php. I'm trying to use the https://github.com/rialto-php/puphpeteer package to generate pdfs and it was working flawlessly but I can't find what changed that is causing it to fail now.
I've been using /usr/local/.nvm/versions/node/v14.2.0/bin/node as the path to node but I also tried copying it here /node/v16.14.2/bin so I could give the entire directory structure execute permissions. In either/both places node is owned by www-data (the user that php runs as) and has execute permissions (755).
Running '/node/v16.14.2/bin/node' '/var/www/html/vendor/nesk/puphpeteer/src/get-puppeteer-version.js' (the initial command that puphpeteer generates) from the command line works just fine and returns the expected result "5.5.0" so node is there and executable and the get-puppeteer-version script exists.
After troubleshooting that I decided to just test exec and discovered that that doesn't work for any commands. I've tried just running exec("date"); and exec("echo EXEC") and these also return the same exit code 127.
The disable_functions ini setting is empty (confirmed via empty result from ini_get('disable_functions')). Safe mode is not enabled (confirmed via false result from ini_get('safe_mode')).
If anyone has any insight into why exec won't work at all would be great!
Environment:
Ubuntu 18.04.4
PHP 8.1
So after further investigation.. I found that this was indeed a permissions issue. I had double checked that node and everything in the /bin folder had appropriate execute permissions..
What I had missed (and am not sure how it got changed) was that the /bin folder itself didn't have the appropriate execute permissions. Adding those immediately fixed my issue.
I am trying to run a command on windows which is the follwing :
sfm+pmvs C:\\xampp\\htdocs\\temp\\$filename/ hello.nvm
I have done this but it wont work for me :
exec("C:\\xampp\\htdocs\\temp\\draw\\VisualSFM_win32.exe sfm+pmvs C:\\xampp\\htdocs\\temp\\$filename/ hello.nvm");
when I do the following :
exec("C:\\xampp\\htdocs\\temp\\draw\\VisualSFM_win32.exe");
it works just fine but I need the other paramters to be included in the command line
how could that be done in php and is there any way to open a cmd.exe and to run the command above ?
thanks in advance
Exec() just running in cmd command which you wrote as first argument of exec(). If VisualSFM_win32.exe not support arguments by run via cmd, you cannot run it as you want. Sorry for my english =)
You asked me for exapmle. My example below.
I am not sure it is 100% right because i don't use windows last 3 years.
#echo off
cd "C:\xampp\htdocs\temp\draw\"
start VisualSFM_win32.exe sfm+pmvs C:\xampp\htdocs\temp\%1/ hello.nvm
and in php
exec("C:\\test.bat " . $filename);
I would like to run pdftk on my webserver. It's a Linux Centos with PHP 5.3.2.
When I connect it by commande line I do
pdftk --version
It's OK
pdftk A=p1-9.pdf cat A1 output p1.pdf
It's OK.
Now, I do this by php :
exec(pdftk A=p1-9.pdf cat A1 output p1.pdf)
It isn't OK. Why?? I search about the link of file, but it looks OK.
This doesn't work too :
exec(pdftk --version)
I install pdftk with this How do I install Pdftk on my server?
So what's wrong??
Thank for your help!
I've run into this issue before. Assuming that you're wrapping your commands string in quotes (as gioele noted), the issue may be that you need to set your path when running the system command. Try this:
$command = "pdftk A=p1-9.pdf cat A1 output p1.pdf";
system("PATH=\$PATH:/usr/bin/ && $command",$response);
if ($response===FALSE){
//there was an error, handle it
}
(I've added a little response handling there as well). If that doesn't work, check to see what path you should use (it will depend on where you installed PDFTK).
I believe you can also get the same result by using putenv("PATH=" .[your path]); and I've used system() here, but exec() should be affected in the same way
I'm trying to run a Python script using exec() from within PHP. My command works fine when I run it directly using a cmd window, but it produces an error when I run it from exec() in PHP.
My Python script uses NTLK to find proper nouns. Example command:
"C:\Python25\python.exe" "C:\wamp\projects\python\trunk\tests\find_proper_nouns.py" "I went to London this morning"
returns [London] when I run it from cmd, but throws an error in the Apache log when I run the same command from exec().The script is defintely getting run OK - if I change the python script to be print "Hello World" that is returned fine.
I know it's a big ask for anyone to know how to fix this NLTK error, but I could really do with any pointers as to why running it from exec is different to cmd. (The command is identical).
I'm running WAMP on Windows 7 with Apache 2.2.11.
Here's the error in the Apache log:
Traceback (most recent call last):
File "C:\wamp\projects\python\trunk\tests\find_proper_nouns_command_line.py", line 6, in <module>
parts = nltk.pos_tag(text)
File "C:\Python25\lib\site-packages\nltk\tag\__init__.py", line 62, in pos_tag
tagger = nltk.data.load(_POS_TAGGER)
File "C:\Python25\lib\site-packages\nltk\data.py", line 590, in load
resource_val = pickle.load(_open(resource_url))
File "C:\Python25\lib\site-packages\nltk\data.py", line 669, in _open
return find(path).open()
File "C:\Python25\lib\site-packages\nltk\data.py", line 451, in find
raise LookupError(resource_not_found)
LookupError:
**********************************************************************
Resource 'taggers/maxent_treebank_pos_tagger/english.pickle' not
found. Please use the NLTK Downloader to obtain the resource:
>>> nltk.download().
Searched in:
- 'C:\\nltk_data'
- 'D:\\nltk_data'
- 'E:\\nltk_data'
- 'C:\\Python25\\nltk_data'
- 'C:\\Python25\\lib\\nltk_data'
- 'C:\\Windows\\system32\\config\\systemprofile\\AppData\\Roaming\\nltk_data'
**********************************************************************
You have to run nltk.download() and choose 'maxent_treebank_pos_tagger'. You must make a python script and in it put:
#!/usr/bin/python
import nltk
nltk.download('maxent_treebank_pos_tagger');
then run it from command line. It will install the data files for the POS tagges, which you don't have installed yet.
After you do this it should work.
Your web server likely runs with other privileges than yourself. Possible problems include:
Path/file permission: can the web server user access the files it needs?
Different environment: are all necessary environment variables (PATH, Python-specific stuff, …) set?
Configuration: are there per-user configurations for Python or the module?
Tip: execute set in both the command prompt and from the PHP process and check the differences.
From the shell/terminal, you can use:
sudo python -m nltk.downloader maxent_treebank_pos_tagger
It will install maxent_treebank_pos_tagger (i.e. the standard treebank POS tagger in NLTK).