层叠菜单的动态生成

if (isset($hierarchy)){

//$hierarchy[] = $selection;

if (isset($hierarchy)){

while(list($level, $sel) = each($hierarchy)){

echo "";

echo $level, ': ', $sel, "
n";

$nextlevel = (int) $level + 1;

}

}

}

else{

$nextlevel = 0;

}

echo "n";

for ($I = 1; $I <= 10; $I++){

echo "

$In";

}

echo "

n";

?>