PHP exec and amixer

manpreet Best Answer 2 years ago

I'm trying to make php lower the dB level of amixer using exec, but it seems like php isn't able to perform the task which requires sudo-access. What should be the best way to solve this?

I tried:

PHP (each line is a own attempt)

echo shell_exec("sudo -u MYUSERNAME sh /var/www/html/music/volume.sh");
echo exec("sudo -u MYUSERNAME sh /var/www/html/music/volume.sh");
echo exec("sudo -u MYUSERNAME /var/www/html/music/volume.sh");

VISUDO

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d
www-data ALL=(MYUSERNAME) NOPASSWD: /var/www/html/music/volume.sh