Solved

Moon Phase

Posted on 2010-09-14
5
741 Views
Last Modified: 2012-05-10
I'd like to modify this moon phase script to replace New Moon, Waxing Crescent Moon, Quarter Moon, Waxing Gibbous Moon, Full Moon, Waning Gibbous Moon, Last Quarter Moon and Waning Crescent Moon with an image to represent the current moon phase.

Example:
case 0:
            return 'images/newmoon.gif';
            break;

Thanks
<?php
function moon_phase($year, $month, $day)
{
	$c = $e = $jd = $b = 0;
	if ($month < 3)
	{
		$year--;
		$month += 12;
	}
	++$month;
	$c = 365.25 * $year;
	$e = 30.6 * $month;
	$jd = $c + $e + $day - 694039.09; //jd is total days elapsed
	$jd /= 29.5305882; //divide by the moon cycle
	$b = (int) $jd; //int(jd) -> b, take integer part of jd
	$jd -= $b; //subtract integer part to leave fractional part of original jd
	$b = round($jd * 8); //scale fraction from 0-8 and round
	if ($b >= 8 )
	{
		$b = 0;//0 and 8 are the same so turn 8 into 0
	}
	switch ($b)
	{
		case 0:
			return 'New Moon';
			break;
		case 1:
			return 'Waxing Crescent Moon';
			break;
		case 2:
			return 'Quarter Moon';
			break;
		case 3:
			return 'Waxing Gibbous Moon';
			break;
		case 4:
			return 'Full Moon';
			break;
		case 5:
			return 'Waning Gibbous Moon';
			break;
		case 6:
			return 'Last Quarter Moon';
			break;
		case 7:
			return 'Waning Crescent Moon';
			break;
		default:
		return 'Error';
	}
}
$timestamp = time();
echo moon_phase(date('Y', $timestamp), date('n', $timestamp), date('j', $timestamp));
?>

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Question by:Michael
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5 Comments
 
LVL 4

Expert Comment

by:ronan1979
ID: 33675425
your example is correct

 what is your issue?
0
 
LVL 4

Expert Comment

by:ronan1979
ID: 33675484
then

<?php

$img_path = moon_phase(date('Y', $timestamp), date('n', $timestamp), date('j', $timestamp));
?>

<img src="<?php echo $img_path?>" />
0
 
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Author Comment

by:Michael
ID: 33675498
The image does not appear, instead it returns copy that reads as:

images/newmoon.gif
0
 
LVL 4

Accepted Solution

by:
ronan1979 earned 50 total points
ID: 33675512
insert the path in a html tag : <img src="img_path" />
0
 
LVL 2

Author Closing Comment

by:Michael
ID: 33675594
Thanks for the help!!!
0

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