How to call a Python Script from PHP?
I have some code written in PHP, but I have also developed a script written in Python. Is it possible to call this Python script from the PHP code? If yes, how can I pass parameters to the Python script from the PHP? I have tried to find an answer without any success. Can someone give me a clue?
Yes definitely, it should be possible.. But please give some more details. Are you running both through commandline or web
4 Answers 4
$mystring = system('python myscript.py myargs', $retval); what is supposed to be present in retval and mystring . Are they same or different, I am assuming that retval will contain what all is present on the console. Can you please help on understanding that also.
the confusion comes from the use of retval. The documentation is also at fault for this as they name this return var, then declare it as retval also. but in the above example $retval is the status of execution, an integer. and $mystring is the last line of output from the script you just ran, a string. Hope that clears things up.
The return code ( $retval here) of an executable program is an integer. The convention is, 0 for no errors and anything else is an application-specific error code.
I managed to make simple function PY([parametress], code) for PHP. You may almost include python code to your PHP. You may pass as well some simple input variables to python process. You cannot get any data back, but I believe that could be easily fixed 🙂 Not ok for using at webhosting (potentionally unsafe, system call), I created it for PHP-CLI..
"); unlink($pyt); > //begin echo "This is PHP code\n"; $r=array('hovinko','ruka',6); $s=6; PY('r',$r,'s',$s, python scripts:
then php Scripts
index.php: $i =`python test.py`; echo $i;
PHP — How to run Python script with PHP code
The shell_exec() function allows you to run a command from the shell (or terminal) and get the output as a string.
Since the function runs a command from the shell, you need to have Python installed and accessible from your computer.
PHP can’t run Python scripts directly. It just passes a command to the shell to run a Python script.
For example, suppose you have a hello.py script with the following code:
To run the script above, you need to write the following code to your PHP file:
The Python script that you want to run needs to be passed as an argument to the shell_exec() function. The echo construct will print the output of the script execution.
If you see the shell responds with python: command not found , then that means the python program can’t be found from the shell.
You need to make sure that the python program can be found by running the which command as follows:
You may also have a Python interpreter saved as python3 , which is how Python is installed in the latest macOS version.
In this case, you need to run the script using python3 in the shell_exec() function:
In a UNIX environment, you can also specify the Python interpreter in the .py file as the shebang line.
Write the interpreter you want to use for the script as follows:
With the shebang line defined, you can remove the python runner from the shell_exec() function:
Now run the PHP script. You should see the same output as when you add the runner to the shell_exec() function.
Sometimes you may see the shell responds with permission denied as follows:
This means that the PHP runner doesn’t have the execute permission for the Python script that you want to run.
To fix this, you need to add the execute permission to the Python script with chmod like this:
When you run the above command from the shell, the execute permission ( x ) will be added to the file.
And that’s how you can run Python script with PHP. Nice! 👍
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Запустить python скрипт из php и получить результат обратно в php
Всем привет. Интересует такой вопрос. Каким образом можно из php скрипта запустить python скрипт, обработать в нем некоторые данные, и получить результат работы скрипта и данные обратно в php ?
Надо ещё добавить к ответам, что exec-функции в PHP часто заблокированы на уровне php.ini по соображениям безопасности.
2 ответа 2
В зависимости от того, что вы делаете, system () или popen ().
Используйте system (), если код Python не имеет выхода, или если вы хотите, чтобы выход скрипта Python переходил непосредственно в браузер.
Используйте popen (), если вы хотите записать данные на стандартный ввод скрипта Python или прочитать данные из стандартного вывода сценария Python в php. Popen () позволит вам читать или писать, но не то, и другое. Если вы хотите оба, проверьте proc_open (), но с двухсторонней связью между программами вы должны быть осторожны, чтобы избежать взаимоблокировок, где каждая программа ждет другого, чтобы что-то сделать.
Если вы хотите передать данные, предоставленные пользователем, в сценарий Python, то самое важное, о чем нужно заботиться, — это командная инъекция. Если вы не будете осторожны, ваш пользователь может отправить вам такие данные, как «; evilcommand»; И заставить вашу программу выполнять произвольный код.
Escapeshellarg () и escapeshellcmd () могут помочь с этим, но лично мне нравится удалять все, что не является известными хорошими данными, используя что-то вроде
Preg_replace (‘/ [^ a-zA-Z0-9] /’, », $ str)
executing python script from php under windows
Okay this works with my linux server but I’m testing my web site at home on my PC and am trying to get php to execute my python script and of course the \ are WINDOWS only the path changes when Im on my linux machine.
$pyscript = 'C:\\wamp\\www\\testing\\scripts\\imageHandle.py'; $python = 'C:\\Python27\\python.exe'; $filePath = 'C:\\wamp\\www\\testing\\uploads\\thumbs\\10-05-2012-523.jpeg' exec('$python $pyscript $filePath', $output, $return ); this works on my linux machine but not my windows testing server. How do I get this to run on windows? Oh and this also works when running directly from the command prompt in windows EDIT: This is the solution:
exec("$python $pyscript $filePath", $output); I used single quotes instead of double quotes before, changing the single quotes to double quotes fixed the problem.
3 Answers 3
I find it odd that the filePath of C:\\wamp\\. would work on a Linux machine. Anyway, have you tried NOT escaping the slashes?
The issue can be related to several things, including OS specific methods of implementing the different program execution functions. I recommend just going through the different options, I always put the command into a single variable and then print out the variable so that I can see what I am about to run, if you saw two slashes, then you might know that there is no need to try to escape the slashes, however without printing it to the screen you wouldn’t know.
Try going through the other process execution functions to see what works for you. http://www.php.net/manual/en/ref.exec.php
The one that I have found works MOST like running it at the command line, is the backtick operator, and then next is system
$pyscript = 'C:\\wamp\\www\\testing\\scripts\\imageHandle.py'; $python = 'C:\\Python27\\python.exe'; $filePath = 'C:\\wamp\\www\\testing\\uploads\\thumbs\\10-05-2012-523.jpeg' $cmd = "$python $pyscript $filePath"; echo $cmd; `$cmd` $pyscript = 'C:\wamp\www\testing\scripts\imageHandle.py'; $python = 'C:\Python27\python.exe'; $filePath = 'C:\wamp\www\testing\uploads\thumbs\10-05-2012-523.jpeg' $cmd = "$python $pyscript $filePath"; echo $cmd; `$cmd` EDIT: AHHH! I just figured it out, you are surrounding your command with single ticks » which means the variable inside are not being replaced. Use double quotes instead. That WILL solve the problem, but I still recommend echoing the command out before you run it so that you would see the command you are running and you would be able to identify an issue like this.