Search code examples
phplinuxraspberry-pigpiorc

reading gpio with php exec failing on rc.local raspberry

I have an infinite loop in a PHP script that read my gpio (with wiringPI) in this manner

$newstatus = trim(exec("gpio read ".$gpioline[$i]));

and this line in rc.local to start on boot

php /root/CheckGPIO.php &

the issue is that when the script is started automatically on boot $newstatus is an empty string variable instead executing php /root/CheckGPIO.php & from the terminal once i have terminal access, all is working good and i get the gpio value in $newstatus

what can cause the issue?

PS. looking at output exec("whoami") script is ever executed as root

Solution

  • The issue was PATH not defined when the script called from rc.local