Bioritmo (Esempio per PHP+GD)
a cura di Till Gerken
http://www.zend.com/zend/tut/dynamic.php
Inserisci la data di nascita:
Codice sorgente
<?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 $TEXT; print("<html><head>"); print("<title>Biorhythm with PHP</title>"); print('<link href="xampp.css" rel="stylesheet" type="text/css">'); print("</head><body>"); print(" <p><h1>".$TEXT['bio-head']."</h1>"); print($TEXT['bio-by']." Till Gerken<br><a class=black href=http://www.zend.com/zend/tut/dynamic.php>http://www.zend.com/zend/tut/dynamic.php</a><p>"); } // // Print a standard page footer // function pageFooter() { include("lang/".file_get_contents("lang.tmp").".php"); include("showcode.php"); print("</body></html>"); } // // Function to draw a curve of the biorythm // Parameters are the day number for which to draw, // period of the specific curve and its color // function drawRhythm($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="get" action="biorhythm.php"> <!-- Please enter your birthday: --> <?=$TEXT['bio-ask']?>: <br> <input type="text" name="birthdate" value="MM/DD/YYYY"><p> <input type=submit value="<?=$TEXT['bio-ok']?>"> <input type="hidden" name="showpng" value=1> </form> <?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."); print("<h2>".$TEXT['bio-error1']." '$birthMonth/$birthDay/$birthYear' ".$TEXT['bio-error2'].".</h2>"); pageFooter(); exit(); } if(@$_REQUEST['showpng']==1) { pageHeader(); echo "<img src=\"biorhythm.php?birthdate=".urlencode($_REQUEST['birthdate'])."\">"; 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, $diagramWidth - 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); ?>