从 PHP 执行 Python 脚本 [英] Execute Python script from Php

问题描述

我的 raspberry pi 上有一个 PHP 网页，有 2 个按钮(打开和关闭)打开按钮按钮重定向到 On.php关闭按钮重定向到 Off.php在/usr/lib/cgi-bin"中，我有一个要执行的python脚本(script.py)我可以通过键入

I have a PHP webpage on my raspberry pi with 2 buttons (on and off) The on button button redirects to On.php The off button redirects to Off.php In "/usr/lib/cgi-bin" I have a python script that I would like to execute (script.py) I can perfectly execute it from the terminal by typing

cd /usr/lib/cgi-bin
sudo python script.py

如果我从终端执行它，它会起作用.

It works if I do it from the terminal.

问题在于我的/var/www"文件夹中的 PHP 文件 (On.php).这是我写的:

The problem is the PHP file (On.php) in my "/var/www" folder. This is what I wrote:

<?php
exec('cd /usr/lib/cgi-bin');
exec('sudo python script.py');
?>

为什么脚本从终端执行，而不是从我的 PHP 执行?

Why is the script executing from the terminal, but not from my PHP?

推荐答案

您不能在 PHP 脚本中使用 sudo.Apache 正在从用户运行(通常是 www-data)，因此请编辑此文件:/etc/sudoers

You can't use sudo from a PHP script. Apache is running from an user (www-data generaly), so edit this file : /etc/sudoers

然后添加这一行:

www-data ALL=(ALL) NOPASSWD:ALL

小心！这将授权 PHP 脚本调用所有函数，您可以通过脚本或 Python 命令修改ALL".

Care ! this will authorize all functions to be called by a PHP script, you can adapt changing "ALL" by your script or Python command.

然后在您的 exec 命令中精确您的用户:

Then precise your user in your exec command :

<?php
exec('sudo -u www-data python /usr/lib/cgi-bin/script.py')

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