PHP exec命令运行python脚本但不运行python3

Question

I currently have python 2.7 installed as part of OSX, and recently installed 3.5.2.

I'm running a local webserver on my mac using XAMPP, and when I execute the python script from within apache, it loads fine:

$executePython = "python " . __DIR__ . "/cycle/cutoff.py $device_id $processPreviousMinutes";
exec("$executePython");

However, when I replace python with python3 my script refuses to run. I can invoke it manually from the command line using both versions, however it seems like the apache account/daemon doesn't have access to python3. Would this be something to do with a configuration file that I've overlooked?

Answer 1

We don't want to mess up with the system wide path on the latest OSX. What if you add the python3 path in your script like this and then do your normal stuff

putenv("PATH=/usr/local/bin/:" . exec('echo $PATH'));
$executePython = "python3 " . __DIR__ . "/cycle/cutoff.py $device_id $processPreviousMinutes";
exec("$executePython");

putenv just adds your python3 path to the whatever current path is in your XAMPP's apache.