Yang Hui Triangle PHP Write Yang Hui Triangle Example Code

Copy code The code is as follows:

//Yang Hui triangle
for ($i=6;$i >= 0;$i--)
{
for ($j= $i;$j <= 6;$j++)
{
if ($j <= 6-1)
{
echo "a";
}else
{
echo "
";
}
}
}
?> action="">
Input the order of Yang Hui's triangle:

< input type="submit" name="submit" value="Print Yang Hui triangle">

function yanghui($line) { echo ""; for($i=1;$i<=$line;$i++) {

echo "";

for($j=1;$j<=$i;$j++)
{
$ yh[$i][1]=1;
if ($i==$j) $yh[$i][$j]=1;
else $yh[$i][$j]=$yh[ $i-1][$j-1]+$yh[$i-1][$j];
echo "

";
}
echo "";
}
echo "

";
echo $yh[ $i][$j];
echo "

";
}
if($_POST['submit']) yanghui($_POST['givenlines']);
?>



The above introduces the Yang Hui triangle example code for writing Yang Hui triangle in PHP, including the content of Yang Hui triangle. I hope it will be helpful to friends who are interested in PHP tutorials.