Web Design & Development

Writing PHP - Sample Color Chart

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>PHP Web</title></head>
<body>
<center>
<table border="1">
<?php
$a = 8;
$b = 8;
for($i = 0 ; $i <= $b ; $i++){
echo "<tr>";
for($j = 0 ; $j <= $a ; $j++){
$k = $i;
$m = $j;
$selColor = "white";
if($i==0){
$k = 1;
}elseif($j==0){
$m = 1;
}

if($i==$j+1){
$selColor = "red";
}
$sum = $k * $m;
echo "<td bgcolor=$selColor>$sum</td>";
}
echo "</tr>";
}
?>
</table>

</center>
</body>
</html>