当PHP中的shell_exec（）执行脚本时，Python open（）函数不起作用
I have a open() command in my Python script which opens the file data.json in my Apache serve running on Raspberry Pi in w mode. This script in turn is run by PHP using the shell_exec command. When the script is run alone, the Python code works. However, it does not function when run by PHP. Does anyone have any idea why this is happening, or is more information needed? Thank you in advance for your help!
我的Python脚本中有一个 open（） code>命令，用于打开文件 data.json code>以 w code>模式在Raspberry Pi上运行。 该脚本依次由PHP使用 shell_exec code>命令运行。 当脚本单独运行时，Python代码可以正常工作。 但是， em>在PHP运行时不起作用。 有谁知道为什么会这样，或者需要更多信息？ 提前感谢您的帮助！ p>
div>
Thank you to user2693053 for solving this problem:
Sounds like a privilege issue, although I am not experienced enough with calling Python from php to know whether that could be an issue here.
and yes, it is a privilege issue! I fixed the problem by doing the sudo chmod 777 * command in the /var/www/html directory.
Did you use the relative or absolute path?
Try to use the absolute path and check what's your working directory. I think you are starting the python script not in the directory you think you are. :)