PHP 8 fixes (#12528)

* port related errors

* more fixes

* fix storage count

* add tests for php8

* style

* only need not empty

* aix fixes....

* storage WIP

* fix aix discovering hrstorage
fix db test adding .gitkeep
fix os modules when discovery only

* fix aos processors wrong oid

* fix mempool number casting

* fix aos7 cpu

* use + 0 cast instead of floatval()

* more verbose error on invalid json

* remove invalid data in json

* actually fix the json

* correct json error fix

* cast_number() function
fix aruba-instant and aos6 bugs exposed by new function, probably more...

* fix a-f
fix inadequate sort for component data

* fix global port poll time

* fix mempools precent 0, route count, ntp const

* fix schleifenbauer liberal current usage

* further number casting refinement

* vrp

* fix tests

* fix arbos

* warn cleanups adjust to :: change

* fix ciena-sds

* fix drac

* fix dell-rpdu anddlink

* fix and improve arubaos
better error when getting an array in Processor

* fix atenpdu, add missing arubaos files

* aruba-instant to yaml
apparently I didn't need to do this, the diff just looks really odd
It did add ranged sub-index replacements

* docker app, was completely wrong... fixed

* fix sentry4 divide by 0...

* fixed root issue, remove check

* nicer cidr in ipv6 code

* remove bogus enuxus battery bank skip_values

* Fix InfluxDB tests

* remove extra import

* fix other style issues.

* influx "style" fixes

includes/polling/ports.inc.php

@@ -516,10 +516,12 @@ foreach ($port_stats as $ifIndex => $port) {
 echo "\n";
 
 // get last poll time to optimize poll_time, poll_prev and poll_period in table db
+$prev_poll_times = array_filter(array_column($ports, 'poll_time'));
+$max_poll_time_prev = empty($prev_poll_times) ? null : max($prev_poll_times);
 $device_global_ports = [
     'poll_time' => $polled,
-    'poll_prev' => max(array_column($ports, 'poll_time')),
-    'poll_period' => ($polled - $port['poll_time']),
+    'poll_prev' => $max_poll_time_prev,
+    'poll_period' => $max_poll_time_prev ? null : ($polled - $max_poll_time_prev),
 ];
 
 $globally_updated_port_ids = [];