Raspberry PI：PHP使用sudo调用python脚本

Question

i'm running Nginx on my Raspberry PI with PHP 5.4.14 (fpm-fcgi). It all works well. But in one script i make a shell call using shell_exec.

echo shell_exec("sudo python " . $file);

it works well if i use the console with

php test.php

but if i use the browser to call this file the php-file will be executed but i don't get any output by the shell_exec (not even an error message).

So i hope you could help me fix this problem.

The called python file makes use of the GPIO so sudo is required, right?

Here is my python code:

#!/usr/bin/env python
try:
    import RPi.GPIO as GPIO
except RuntimeError:
    print "Error Importing GPIO. Did your forgot the superuser privilieges?"

GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)

GPIO.setup(3, GPIO.OUT)

GPIO.output(3, not GPIO.input(3))

print "New LED state is: ", GPIO.input(3)

#GPIO.cleanup()

Answer 1

for future reference:

I found a - i my eyes - not really nice solution:

sudo echo "apache ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

Found here .

Answer 2

Mm, i have try with this two simple example:

/Scripts/test.py

#!/usr/bin/env python
print (str('hello world'))

/var/www/test.php

<?php
echo shell_exec('/Scripts/test.py');
?>

via a browser, show me "hello world"

Perhaps try this:

chmod a+x your_py_file.py

Hope that help..