从php在计算机上运行脚本 [英] Run a script on a computer from php

问题描述

我无法从php执行shell命令.目标是通过互联网(例如，使用手机)打开/关闭计算机/服务器的音乐播放器.这是我可以做的:

我有一个非常简单的文件"play.sh":代码:

  xdotool键XF86AudioPlay;回声切换"； 

如果我运行它./play.sh，那可以工作(音乐播放器打开/关闭)

然后我还有另一个非常简单的php文件"play.php":代码:

 <?php echo shell_exec("./play.sh");?> 

这两个文件位于服务器的主文件夹中，该服务器是计算机的分区.(我正在使用lampp)但是音乐正在从计算机上播放.

但是当我进入localhost/play.php时，我可以看到"switched"向我显示了sh文件已被执行，但是声音没有关闭.

我刚刚尝试了 exec()， shell_exec()， passthru()， system()，..使用./play.sh和/opt/lampp/.../play.php 时，结果完全相同，并且没有错误消息..:/

但是，这很奇怪，我不确定，但是我认为我在计算机端运行的内容与在服务器端运行的内容不同.我的意思是，声音好像在虚拟服务器上打开/关闭，但与我的计算机的声音没有任何联系.那可能是一个解释..但是，如何从Internet/我的服务器上在我的计算机上执行脚本.?

有人有这样做的想法吗?是apache的配置吗?

谢谢！

这是我解决问题的方法:

  xhost + local:www-data 

感谢您的所有答复

解决方案

这可能是权限问题-请记住，当PHP运行命令时，它以用户身份运行 webserver 如 www-data 或 apache 或其他任何内容.如果您的音乐播放器是以您自己的个人用户身份运行的，那么您的脚本可能无法以其他用户身份运行时对其进行更改.

I'm unsuccessfully trying to execute a shell command from php. The goal is to switch on/off my music player of my computer/server via internet (with my phone for example). Here is what I would be able to do :

I have a very simple file "play.sh" : Code:

xdotool key XF86AudioPlay;
echo "switched";

if I run it ./play.sh, that works (music player switches on/off)

then I have an other very simple php file "play.php" : Code:

<?php echo shell_exec("./play.sh"); ?>

These two files are in the main folder of my server which is a partition of my computer. (I'm using lampp) But music is playing from my computer.

But when I'm going on localhost/play.php, I can see "switched" that showed me the sh file as been executed, but the sound doesn't turn off .

I just tried exec(), shell_exec(), passthru(), system(), .. with ./play.sh and /opt/lampp/.../play.php the result is exactly the same, and there is no error message.. :/

But that's weird, I'm not sure, but I think that what I run on my computer side is not the same than what I run on my server side. I mean that it's like the sound was turning on/off on the virtual server but had no link with the sound of my computer. That could be an explanation.. but then, how to execute a script on my computer from internet/my server..?

Does someone have an idea to do that ? Is it a configuration of apache..?

Thanks !

EDIT : Here is how I solved my problem :

xhost + local:www-data

Thanks for all your replies

解决方案

It may be a permissions issue - keep in mind that when PHP runs a command, it's run as the user the webserver is running as, e.g. www-data or apache or whatever. If your music player is running as your own personal user, your script may not have the ability to change it when run as a different user.

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