If you get the above error, change ```$output = system($cmd);``` to ```$output = exec($cmd);``` or ```$output = passthru($cmd);``` Whilst ```exec``` and ```pasthru``` may also be disabled, they are less likely to be disabled than ```system```
If you get the above error, change
$output = system($cmd);to$output = exec($cmd);or$output = passthru($cmd);Whilst
execandpasthrumay also be disabled, they are less likely to be disabled thansystem