Sunlight optimism core loop - https://dracos.co.uk/made/sunlight-optimism/

core.php

# Have a $lat and a $lon when you get here

    $time = time();
    $nextyear = strtotime('21 June');
    if ($nextyear < $time) $nextyear += 365*86400;
    $row = [];
    while ($time < $nextyear) {
        $last = date_sun_info($time-86400, $lat, $lon);
        $sun = date_sun_info($time, $lat, $lon);
        $rise = $sun['sunrise'];
        $set = $sun['sunset'];
        $Hrise = date('H', $rise);
        $Hset = date('H', $set);
        $Lrise = $last['sunrise'];
        $Lset = $last['sunset'];
        $HLrise = date('H', $Lrise);
        $HLset = date('H', $Lset);
        for ($h=8; $h<=24; $h++) {
            if ($set-$rise >= $h*3600 && $Lset-$Lrise < $h*3600) {
                $row[] = [$time, $rise, $set, 'day', $h];
            }
        }
        for ($r=0; $r<=11; $r++) {
            if ($Hrise < $r && $HLrise == $r) {
                $row[] = [$time, $rise, $set, 'rise', $r];
            }
        }
        for ($r=13; $r<=23; $r++) {
            if ($Hset == $r && $HLset < $r) {
                $row[] = [$time, $rise, $set, 'set', $r-12];
            }
        }
        $time += 86400;
    }

print_r($row); # Display how you like

onetoot.php

$t=time();$n=strtotime('6/21');if($n<$t)$n+=31536E3;$o=[];while ($t<$n){$l=date_sun_info($t-86400,$lat,$lon);$u=date_sun_info($t,$lat,$lon);$r=$u['sunrise'];$s=$u['sunset'];$lr=$l['sunrise'];$ls=$l['sunset'];for ($h=7;++$h<25;){if($s-$r>=$h*3600&&$ls-$lr<$h*3600){$o[]=[$t,$r,$s,'day',$h];}}for ($h=-1;++$h<12;){if (date('H',$r)<$h&&date('H',$lr)==$h){$o[]=[$t,$r,$s,'rise',$h];}}for ($h=12;++$h<24;){if (date('H',$s)==$h&&date('H',$ls)<$h){$o[]=[$t,$r,$s,'set',$h-12];}}$t+=86400;}