I'm having issues using oowriter to convert a doc to a pdf using php exec(). The line i'm running below works fine in CLI, just not in php using exec().
$stdin = "/usr/bin/oowriter --headless --convert-to pdf -outdir /var/data/uploads/ /var/data/uploads/lorem.docx";
exec($stdin,$stdout,$return_int);
$stdout returns an empty Array and $return_int returns 0.
I've searched around and the only possible solution I could find was adding the path to oowriter (which you can see i have done). Is there a permissions issue running this command as the apache user? There are a few posts on exec() not working in general, but I can successfully run commands for imagemagick using this method. Therefore it seems to me that this an application specific configuration issue with openoffice.
Appears to be a duplicate of the following, but no answers have been posted:
unable to run oowriter as web user
FYI I'm using CentOS V6.1 and PHP v5.3.3. Thanks.
Related
I am trying to download the contents of an html file to my Ubuntu Linux 16.04 computer using php's get_file_contents() function. However, when I do this, I get this Warning: "failed to open stream: the , aborting"
Yet when I use wget on the terminal command line, it quickly downloads the file contents.
So why does file_get_contents not work for this? Here is my php code, which produces the Warning:
$testDownload = file_get_contents("https://ebird.org/region/US-AL-001?yr=all");
echo $testDownload;
On my Ubuntu terminal command line, here is my bash code, which works quickly and flawlessly:
wget https://ebird.org/region/US-AL-001?yr=all
I want to use php because I want to automate the downloading of a number of files and need a fair bit of code to do it, and I feel much more comfortable using php than bash.
P.S. I tried various "context" solutions for the file_get_contents function that were suggested on Stack Overflow, but they did not solve the problem.
P.P.S. I earlier tried cURL and got the same redirects Warning, though I admit to not knowing much about cURL.
I found a solution: the shell_exec() function in php allows me to use bash's wget command line function within my php script. I tried it and it worked. (I will have to change the ownership of the downloaded files to get access to them.) Here is the code that worked:
$output = shell_exec('wget https://ebird.org/region/US-AL-005?yr=all');
I still don't understand why wget can get the file contents but file_get_contents cannot. But with shell_exec() I have found a php solution to complete my task, so I am happy.
The problem is faced while running node command (which generates PDF file for given link) on Linux through PHP exec/passthru/system functions. Actually, I am trying to create PDF file through headless chrome using Puppeteer node module. Everything worked fine in Windows system but as soon as the same code was moved on production server (which uses Linux), the exec/passthru commands began to throw 127 return code errors. Please note that same node command works without any problem when run directly on terminal .
Also, Apache has write permissions in directory where file is being generated and command was also tried by giving the absolute paths but nothing seems to be working
The format of command is like this
"node script-generating-code.js http://www.url-of-page.com/"
I'm trying to run a ROS shell program on the server through php on Ubuntu 14.04. I have tried using system, exec, shell_exec but nothing happens and I don't get any output. The system call is the following:
echo shell_exec("/opt/ros/indigo/bin/rosrun gazebo_ros spawn_model -database Part_A -gazebo -model Part_A");
What are the limitations of using system or exec to run any shell command through php on a server?
I don't care as much about the output of the command as for its execution. I think the problem has to do with the fact that PHP doesn't have any PATH like shell does so it can't find any applications without specifying the exact location. How can I make PHP se the same PATH shell does?
The problem was that the apache user and the environment in which the bash commands are running are not set up correctly. I followed the instructions from this answer but instead of using "source" I used "." and instead of using the source.bash file I used the source.sh file. I also set all the environment variables that had to do with ros or gazebo using the putenv() function.
I want to execute a command in ubuntu terminal. When I directly run the command in terminal, it runs without any problem. But What I actually want to do is to execute this command via PHP.
chdir('/home/thilini/FYP/testone/bin/');
exec('./mindtct input_folder/filename output_folder/filename');
The php code I wrote is shown above. I am using ubuntu 10.10 and the LAMP configuration. chdir is working fine and I have successfully moved from /var/www/ to /home/thilini/FYP/testone/bin/ (where I have the executable mindtct). But exec is not working. (mindtct is an executable which convert the file in the input folder to another format and store it in the output_folder under the given name).
What am I doing wrong?
The problem was an issue in the path. A forward slash was missing.
If you're running below php 5.4,check "safe_mode" in your ini file.
http://www.php.net/manual/en/features.safe-mode.functions.php
You probably want
exec('./mindtct input_folder/filename output_folder/filename');
Maybe you should set error_reporting(-1) in your script so you get some errors
You want to use shell_exec(), not exec().
shell_exec() executes a command in the terminal, whereas exec() opens an application.
$results = shell_exec('./mindtct input_folder/filename output_folder/filename');
print_r($results);
This will execute the command, store it in results, and then print_r the results in array format.
http://php.net/manual/en/function.exec.php
http://php.net/manual/en/function.shell-exec.php
I am trying to get the path to certain exe's using the where command in the command prompt on windows.
Here is what i did in command prompt.
where g++
where java
where javac
where python
All of these are giving the correct output of the path in the console window which indicated that I have set the environment variables correctly.
But now When i try to run the commands using the shell_exec() function in PHP, only the call to where java and where python gives the correct output. I was even able to successfully execute a respective test file using these commands through PHP.
But strangely, where g++ and where javac give this error in the browser when run through PHP:
INFO: Could not find files for the given pattern(s).
Also if I get the outputs of these two commands on the console and then copy that into my script to compile a c++ or java file, it works perfect. But the where command returns the above INFO when run through the PHP script.
I am running the server on localhost using XAMPP. Any idea what is missing?