PHP for loop puzzle -

i have question. trying learn php , told me doing "star" exercises way learn loops. got pretty far myself stuck.

here code ;

for ($row = 0; $row < 11; $row++) {   for($y = 0; $y < 1; $y++){     echo "y";                   }   for($o = 0; $o < 5; $o++){     echo "o";   }   if ($o <=5) {     echo "</br>";   } } 

im trying print following browser ;

y o o o o o o y o o o o o o y o o o o o o y o o o o o o y o o o o o o y o o o o y o o o o y o o o o y o o o o y o o o o y o o o o o 

i hope able assist me!

thanks in advance!

$n=11;   ($row = 0; $row < $n-1; $row++) {   for($line=0; $line < $n;$line++){    if ($row==$line) {       echo 'y';     }   else       echo 'o';}   echo '</br>'; } ($row = $n-1; $row > 0; $row--) {   for($line=0; $line < $n;$line++){    if ($row==$line) {       echo 'y';     }   else       echo 'o';}   echo '</br>'; } 

it's start, follow matrix horizontally, , whenever on current line print y. then, start last row towards start. print 2 matrices diagonals.

it can optimized 1 loop goes until half of $n forward y's , @ second half backwards.