Syntax errot in cron.php file

NextCloud ver 12.0.0 installed on QNAP TS453A (4 core Intel, 8 GB RAM).
QTS ver build 20170727 (the latest available).
I add community repo
Using this repo I install NC ver 12.0.0. NC on my QNAP works on Qapache ver, taken from the same community repo. So that is separated HTTP server with own PHP.
Now I want to use cron.php to keep NC database actual.
So I run from terminal cron.php manually but it rapports an errors:

[/share/CACHEDEV1_DATA/.qpkg/NextCloud/nextcloud] # ./cron.php
./cron.php: line 1: ?php: No such file or directory
./cron.php: line 2: /bin: is a directory
./cron.php: line 3: syntax error near unexpected token (' ./cron.php: line 3: * @copyright Copyright © 2016, ownCloud, Inc.’

So where is an syntax error in cron.php.file.
Can anybody help me ro resolve problem?

SOLVED! Correct syntax should be:

/opt/Qapache/bin/php -f ./cron.php