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index.php word.php functions.php
<?PHP
/* Copyright (c) 2011 Brad Greco
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/* word.php generates a PNG image of a periodic table word from $_GET['word'].
* It has these options:
* - showmass=true: shows the molar mass of each element
* - shownum=true: shows the number of each element
* - showname=true: shows the name of each element
*/
require 'functions.php';
$word = $_GET["word"] ?? '';
$showname = $_GET["showname"] ?? FALSE;
$shownum = $_GET["shownum"] ?? FALSE;
$showmass = $_GET["showmass"] ?? FALSE;
$size = $_GET["size"] ?? 1;
$db = db_connect();
$elements = elements($db, false);
$e = array_keys($elements);
$words = explode(" ", $word);
$number = 1;
foreach($words as $word) {
$result = periodic($word, $e, $size);
for($i = 0; $i < strlen($result); $i++) {
if(substr($result, $i, 1) <= 'Z' && substr($result, $i+1, 1) > 'Z') { // 2 character element
$current = substr($result, $i, 2);
$i++;
} else if(substr($result, $i, 1) <= 'Z') { // 1 character element
$current = substr($result, $i, 1);
}
$symbols[$number] = $current;
$names[$number] = $elements[$current]['name'];
$masses[$number] = $elements[$current]['mass'];
$numbers[$number] = $elements[$current]['number'];
$number++;
}
$number++;
}
$number--;
$BOX_WIDTH = 70;
$BOX_HEIGHT = 80;
$SYMBOL_SIZE = 25;
$NAME_SIZE = 8;
$NUM_SIZE = 10;
$MASS_SIZE = 9;
$sheight = 50;
$numheight = 15;
$nameheight = 15;
$massheight = 75;
if($shownum || $showname)
$sheight = $sheight + 5;
if($showname && $shownum) {
$sheight = $sheight + 5;
$numheight = 30;
}
$img = ImageCreate(($number - 1) * $BOX_WIDTH + 1 ,$BOX_HEIGHT);
$white = imagecolorallocate($img, 255, 255, 255);
$black = imagecolorallocate($img, 0, 0, 0);
$font = __DIR__."/arial.ttf";
$symbolfont = __DIR__."/arialbd.ttf";
imageline($img, 0, 0, ($number - 1) * $BOX_WIDTH + 1, 0, $black);
imageline($img, 0, $BOX_HEIGHT - 1, ($number - 1) * $BOX_WIDTH + 1, $BOX_HEIGHT - 1, $black);
for($i = 0; $i < $number; $i++) {
imageline($img, $BOX_WIDTH * $i, 0, $BOX_WIDTH * $i, $BOX_HEIGHT, $black);
if (isset($symbols[$i + 1])) {
$box = imagettfbbox($SYMBOL_SIZE, 0, $symbolfont, $symbols[$i + 1]);
imagettftext($img, $SYMBOL_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $sheight, $black, $symbolfont, $symbols[$i + 1]);
if($showname) {
$box = imagettfbbox($NAME_SIZE, 0, $font, $names[$i + 1]);
imagettftext($img, $NAME_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $nameheight, $black, $font, $names[$i + 1]);
}
if($shownum) {
$box = imagettfbbox($NUM_SIZE, 0, $symbolfont, $numbers[$i + 1]);
imagettftext($img, $NUM_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $numheight, $black, $symbolfont, $numbers[$i + 1]);
}
if($showmass) {
$box = imagettfbbox($MASS_SIZE, 0, $font, $masses[$i + 1]);
imagettftext($img, $MASS_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $massheight, $black, $font, $masses[$i + 1]);
}
}
}
Header('Content-type:image/png');
ImagePNG($img);
ImageDestroy($img);
?>
'Z') { // 2 character element
$current = substr($result, $i, 2);
$i++;
} else if(substr($result, $i, 1) <= 'Z') { // 1 character element
$current = substr($result, $i, 1);
}
$symbols[$number] = $current;
$names[$number] = $elements[$current]['name'];
$masses[$number] = $elements[$current]['mass'];
$numbers[$number] = $elements[$current]['number'];
$number++;
}
$number++;
}
$number--;
$BOX_WIDTH = 70;
$BOX_HEIGHT = 80;
$SYMBOL_SIZE = 25;
$NAME_SIZE = 8;
$NUM_SIZE = 10;
$MASS_SIZE = 9;
$sheight = 50;
$numheight = 15;
$nameheight = 15;
$massheight = 75;
if($shownum || $showname)
$sheight = $sheight + 5;
if($showname && $shownum) {
$sheight = $sheight + 5;
$numheight = 30;
}
$img = ImageCreate(($number - 1) * $BOX_WIDTH + 1 ,$BOX_HEIGHT);
$white = imagecolorallocate($img, 255, 255, 255);
$black = imagecolorallocate($img, 0, 0, 0);
$font = __DIR__."/arial.ttf";
$symbolfont = __DIR__."/arialbd.ttf";
imageline($img, 0, 0, ($number - 1) * $BOX_WIDTH + 1, 0, $black);
imageline($img, 0, $BOX_HEIGHT - 1, ($number - 1) * $BOX_WIDTH + 1, $BOX_HEIGHT - 1, $black);
for($i = 0; $i < $number; $i++) {
imageline($img, $BOX_WIDTH * $i, 0, $BOX_WIDTH * $i, $BOX_HEIGHT, $black);
if (isset($symbols[$i + 1])) {
$box = imagettfbbox($SYMBOL_SIZE, 0, $symbolfont, $symbols[$i + 1]);
imagettftext($img, $SYMBOL_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $sheight, $black, $symbolfont, $symbols[$i + 1]);
if($showname) {
$box = imagettfbbox($NAME_SIZE, 0, $font, $names[$i + 1]);
imagettftext($img, $NAME_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $nameheight, $black, $font, $names[$i + 1]);
}
if($shownum) {
$box = imagettfbbox($NUM_SIZE, 0, $symbolfont, $numbers[$i + 1]);
imagettftext($img, $NUM_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $numheight, $black, $symbolfont, $numbers[$i + 1]);
}
if($showmass) {
$box = imagettfbbox($MASS_SIZE, 0, $font, $masses[$i + 1]);
imagettftext($img, $MASS_SIZE, 0, $BOX_WIDTH * $i - (($box[4] - $box[6])/2) + $BOX_WIDTH/2 - 1, $massheight, $black, $font, $masses[$i + 1]);
}
}
}
Header('Content-type:image/png');
ImagePNG($img);
ImageDestroy($img);
?>