<?php
# this scripts calculates the total rain value for a season starting at the month oktober
#
# 1. put this html file in meteohub graphs folder
# 2. let meteouhub upload this file once a day with the new name seqmonth.php
# 3. include this seqmonth.php script in your current web site scripts.
#
# the value returned contains the rain value for the CURRENT season, so in oktober only the amount of the month oktober.
#
$stringSeq				= "[seqmonth1_rain0_total_mm]"; // tags to be filled with data by meteohub
$valueRainSeason		= [month1_rain0_total_mm];		// here we will put the rain-value for the CURRENT rain season

if (trim($stringSeq) == '') {echo 'error, seasons data not available'; return $valueRainSeason;}

$currentMonth 			= date('m',time());
if ($currentMonth == '10') {return $valueRainSeason;}	// oktober is the first month of the rain-season

# calculate the first month of oktober in the seqmonth1 'array'
# data in the seqmonth string is:	54.00_10.00_15.80_53.20_43.80_47.00_78.00_59.20_54.20_24.60_64.00_34.40_64.40_
# it is now june, the months are:   may   apr   mar   feb   jan   dec   nov   okt   sep    aug  jul   jun   may
#
$oktInArray				= $currentMonth	- 10;
if ($oktInArray < 0) {$oktInArray = $oktInArray + 12;}

$arrMonths				= explode (' ', $stringSeq);	// put the seqmonth1 data in an array;

for ($counter = 0; $counter < $oktInArray; $counter++) {
	$valueRainSeason	= $valueRainSeason + $arrMonths[$counter];
}
echo "<!-- Calculated for month: $currentMonth. Input: $stringSeq. Value:  $valueRainSeason. -->".PHP_EOL;
return $valueRainSeason;

?>