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index.php word.php functions.php
<?PHP
/* 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"];
$shownum = $_GET["shownum"];
$showmass = $_GET["showmass"];
$e = elements();
$words = explode( " ", $word );
$number = 1;
foreach( $words as $word ) {
$result = periodic( $word, $e, $_GET['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] = addslashes($current);
$row = mysql_query( "SELECT * FROM periodic WHERE symbol='$current';" );
$element = mysql_fetch_array( $row );
$names[$number] = $element['name'];
$masses[$number] = $element['mass'];
$numbers[$number] = $element['number'];
mysql_free_result( $row );
$number++;
}
$number++;
}
mysql_close();
$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 == "checked" || $showname == "checked")
$sheight = $sheight + 5;
if($showname == "checked" && $shownum == "checked") {
$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);
$font = "/var/www/bgreco.net/periodic/arial.ttf";
//$symbolfont = "arialbd.ttf";
//$font = "arial.ttf";
$symbolfont = "/var/www/bgreco.net/periodic/arialbd.ttf";
imageline($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 );
$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 == "checked") {
$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 == "checked") {
$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 == "checked") {
$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);
?>