Every link in the weather chain, in order. The first red row is the problem.
If “PHP is executing” passes but “api/metar.php answers correctly” returns HTML,
the request is hitting a 404 page instead of the script. Check that the folder is exactly
public_html/api/ (lower case), that the file is metar.php and not
metar.php.txt, and that no cPanel “hotlink protection” or security rule is blocking
/api/.
If outbound HTTPS fails, your hosting plan is blocking the connection to the FAA. That is a
Namecheap setting, not a code problem — open a support ticket asking them to permit outbound HTTPS
from your account to aviationweather.gov. Until then the app still works: open the
airport and tap Enter wind to type the wind from the ATIS, and everything else — runway
lengths, percentages, the abort logic — runs normally.
Machine-readable version: check.php?json=1. Back to the app.