nginx - Can't execute yolo/darknet from php exec - predictions.png never appears? -


yolo: https://github.com/pjreddie/darknet

i'm trying run within php script, predictions.png never appears. assume general problem understanding of how exec works, rather how yolo works.

i've changed permissions , users on relevant folders , directories nginx/777. know that's not ideal it's troubleshooting step!

what happens when calling darknet terminal:

logging output appears on screen, , @ end of process file called predictions.php should created in /darknet directory. when running php in browser don't care logging output, want png file created.

works:

/darknet/darknet detect /darknet/cfg/yolo.cfg /darknet/yolo.weights /path/to/photo.jpg

works:

sudo -u nginx php71 -r 'exec("/darknet/darknet detect /darknet/cfg/yolo.cfg /darknet/yolo.weights /path/to/photo.jpg");'

works commandline (php71 myfile.php), not in browser:

<?php exec("/darknet/darknet detect /darknet/cfg/yolo.cfg /darknet/yolo.weights /path/to/photo.jpg");

what doing wrong?


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