//小到大
$nu =array(140,23,78,69,5,12,8,99);
for($i=1,$k=count($nu);$i<$k;$i++){for($j=0;$j<$k-$i;$j++){
if($nu[$j]>$nu[$j+1]){
$tmp = $nu[$j];
$nu[$j]=$nu[$j+1];
$nu[$j+1] =$tmp;
}
}
}
print_r ($nu);
echo "<hr>";
//大到小
for($i=1,$k=count($num1);$i<$k;$i++){
for($j=0;$j<$k-$i;$j++){
if($num1[$j]<$num1[$j+1]){
$tmp = $num1[$j];
$num1[$j] = $num1[$j+1];
$num1[$j+1] = $tmp;
}
}
}
print_r ($num1);