php/mandelbrot_ascii.php

<!DOCTYPE html>
<html lang=en>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
<style>
body { color: #ffffff; background-color: #000000; font-size: 8pt; font-family: "Courier New"; margin-top: 100px; text-align: center; }
</style>
</head>
<body>

<?php

$size = 20;
$field = 2;
$max = 10;

for($i=-$size;$i<$size-13;$i++){
        for($j=-$size;$j<$size;$j++){
                $a = $i/$size*$field;
                $b = $j/$size*$field;
                $asave = $a;
                $bsave = $b;
                $count = 0;
                while (($a*$a+$b*$b<4)&&($count<$max)){
                        $temp = $a*$a - $b*$b + $asave;
                        $b = 2*$a*$b + $bsave;
                        $a = $temp;
                        $count++;
                }
                if ($count == $max){
                        print "o";
                }else{
                        print " ";
                }
        }
        print "<br>";
}

print "<br><br><br><br>";
print "1.11.2005<br>";
print "The Mandelbrot set generated by PHP<br>";
print "Dany Shaanan";

?>

</body>
</html>