If 1 of month and startingDay is not first td, the "filling" td's have wrong data-datetime and highlighting

[somatonic]

In buildBody() the $day (starts with 1) doesn't get counted up for the fill days up until startingDay (1. of month).

This results in having those td's all have a data-datetime of m-01-Y. And if an event is on 1. those also get highlighted.

I changed the inner for loop to something like:

for ($j = 0; $j <= 6; $j++) {

	if ($day <= $monthLength && ($i > 0 || $j >= $startingDay)) {
		$curr_date = $this->getDayDate($day);
		$classes = [];
		if ($this->hasEvent($curr_date))
			$classes[] = 'event';
		if ($curr_date == $this->today)
			$classes[] = 'today';
		$class = count($classes) ? ' class="' . implode(' ', $classes) . '"' : '';
		$h .= "<td data-datetime='$curr_date' $class>";
		$h .= $this->dateWrap[0];
		$h .= $this->dayWrap[0];
		$h .= $day;
		$h .= $this->dayWrap[1];
		$h .= $this->buildEvents($curr_date);
		$day++;
	} else {
		$h .= "<td>";
		$h .= $this->dateWrap[0];
		$h .= "&nbsp;";
	}
	$h .= $this->dateWrap[1];
	$h .= "</td>";
}