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<?php
include "langsettings.php";
// Biorhythm by Till Gerken
// http://www.zend.com/zend/tut/dynamic.php
//
// Multi-language support by Kai Oswald Seidler, 2003
//
// Print a standard page header
//
function pageHeader() {
global $TEXT;
echo '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"'."\n";
echo ' "http://www.w3.org/TR/html4/loose.dtd">'."\n";
echo "<html><head>";
echo '<link href="xampp.css" rel="stylesheet" type="text/css">';
echo '<meta name="author" content="Kai Oswald Seidler, Kay Vogelgesang, Carsten Wiedmann">';
echo "<title>{$TEXT['bio-head']}</title>";
echo "</head><body>";
echo "<br><h1>".$TEXT['bio-head']."</h1>";
echo "<p>".$TEXT['bio-by']." Till Gerken<br><a class='black' href='http://www.zend.com/zend/tut/dynamic.php'>http://www.zend.com/zend/tut/dynamic.php</a></p>";
}
//
// Print a standard page footer
//
function pageFooter() {
echo "</body></html>";
}
//
// Function to draw a curve of the biorythm
// Parameters are the day number for which to draw,
// period of the specific curve and its color
//
function drawRhythm($daysAlive, $period, $color) {
global $daysToShow, $image, $diagramWidth, $diagramHeight;
// get day on which to center
$centerDay = $daysAlive - ($daysToShow / 2);
// calculate diagram parameters
$plotScale = ($diagramHeight - 25) / 2;
$plotCenter = ($diagramHeight - 25) / 2;
// draw the curve
for ($x = 0; $x <= $daysToShow; $x++) {
// calculate phase of curve at this day, then Y value
// within diagram
$phase = (($centerDay + $x) % $period) / $period * 2 * pi();
$y = 1 - sin($phase) * (float)$plotScale + (float)$plotCenter;
// draw line from last point to current point
if ($x > 0) {
imageLine($image, $oldX, $oldY, $x * $diagramWidth / $daysToShow, $y, $color);
}
// save current X/Y coordinates as start point for next line
$oldX = $x * $diagramWidth / $daysToShow;
$oldY = $y;
}
}
//
// ---- MAIN PROGRAM START ----
//
// check if we already have a date to work with,
// if not display a form for the user to enter one
//
if (!isset($_REQUEST['birthdate'])) {
pageHeader();
?>
<form method="post" action="<?php echo basename($_SERVER['PHP_SELF']); ?>">
<!-- Please enter your birthday: -->
<?php echo $TEXT['bio-ask']; ?>:
<br>
<input type="text" name="birthdate" value="MM/DD/YYYY"><p>
<input type="submit" value="<?php echo $TEXT['bio-ok']; ?>">
<input type="hidden" name="showpng" value="1">
</form>
<?php
include 'showcode.php';
pageFooter();
exit;
}
// get different parts of the date
$birthMonth = substr($_REQUEST['birthdate'], 0, 2);
$birthDay = substr($_REQUEST['birthdate'], 3, 2);
$birthYear = substr($_REQUEST['birthdate'], 6, 4);
// check date for validity, display error message if invalid
if (!@checkDate($birthMonth, $birthDay, $birthYear)) {
pageHeader();
//print("The date '$birthMonth/$birthDay/$birthYear' is invalid.");
echo "<h2>".$TEXT['bio-error1']." '$birthMonth/$birthDay/$birthYear' ".$TEXT['bio-error2'].".</h2>";
pageFooter();
exit;
}
if (isset($_POST['showpng']) && ($_POST['showpng'] == 1)) {
pageHeader();
echo "<img src='".basename($_SERVER['PHP_SELF'])."?".htmlentities("birthdate=".urlencode($_REQUEST['birthdate']))."' alt=''>";
pageFooter();
exit;
}
// specify diagram parameters (these are global)
$diagramWidth = 710;
$diagramHeight = 400;
$daysToShow = 30;
// calculate the number of days this person is alive
// this works because Julian dates specify an absolute number
// of days -> the difference between Julian birthday and
// "Julian today" gives the number of days alive
$daysGone = abs(gregorianToJD($birthMonth, $birthDay, $birthYear) - gregorianToJD(date("m"), date("d"), date("Y")));
// create image
$image = imageCreate($diagramWidth, $diagramHeight);
// allocate all required colors
$colorBackgr = imageColorAllocate($image, 192, 192, 192);
$colorForegr = imageColorAllocate($image, 255, 255, 255);
$colorGrid = imageColorAllocate($image, 0, 0, 0);
$colorCross = imageColorAllocate($image, 0, 0, 0);
$colorPhysical = imageColorAllocate($image, 0, 0, 255);
$colorEmotional = imageColorAllocate($image, 255, 0, 0);
$colorIntellectual = imageColorAllocate($image, 0, 255, 0);
// clear the image with the background color
imageFilledRectangle($image, 0, 0, $diagramWidth - 1, $diagramHeight - 1, $colorBackgr);
// calculate start date for diagram and start drawing
$nrSecondsPerDay = 60 * 60 * 24;
$diagramDate = time() - ($daysToShow / 2 * $nrSecondsPerDay) + $nrSecondsPerDay;
for ($i = 1; $i < $daysToShow; $i++) {
$thisDate = getDate($diagramDate);
$xCoord = ($diagramWidth / $daysToShow) * $i;
// draw day mark and day number
imageLine($image, $xCoord, $diagramHeight - 25, $xCoord, $diagramHeight - 20, $colorGrid);
imageString($image, 3, $xCoord - 5, $diagramHeight - 16, $thisDate["mday"], $colorGrid);
$diagramDate += $nrSecondsPerDay;
}
// draw rectangle around diagram (marks its boundaries)
imageRectangle($image, 0, 0, $diagramWidth - 1, $diagramHeight - 20, $colorGrid);
// draw middle cross
imageLine($image, 0, ($diagramHeight - 20) / 2, $diagramWidth, ($diagramHeight - 20) / 2, $colorCross);
imageLine($image, $diagramWidth / 2, 0, $diagramWidth / 2, $diagramHeight - 20, $colorCross);
// print descriptive text into the diagram
imageString($image, 3, 10, 10, $TEXT['bio-birthday'].": $birthDay.$birthMonth.$birthYear", $colorCross);
imageString($image, 3, 10, 26, $TEXT['bio-today'].": ".date("d.m.Y"), $colorCross);
imageString($image, 3, 10, $diagramHeight - 42, $TEXT['bio-physical'], $colorPhysical);
imageString($image, 3, 10, $diagramHeight - 58, $TEXT['bio-emotional'], $colorEmotional);
imageString($image, 3, 10, $diagramHeight - 74, $TEXT['bio-intellectual'], $colorIntellectual);
// now draw each curve with its appropriate parameters
drawRhythm($daysGone, 23, $colorPhysical);
drawRhythm($daysGone, 28, $colorEmotional);
drawRhythm($daysGone, 33, $colorIntellectual);
// set the content type
header("Content-Type: image/png");
// create an interlaced image for better loading in the browser
imageInterlace($image, 1);
// mark background color as being transparent
imageColorTransparent($image, $colorBackgr);
// now send the picture to the client (this outputs all image data directly)
imagePNG($image);
exit;
?>
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