复制代码 代码如下:
$a=array("11","2","13","4","22");
$num = count($a);
for($i=0;$i<$num;$i++){
for($j=0;$j<$num;$j++){
if($a[$i]<$a[$j]){
$temp = $a[$i];
$a[$i]=$a[$j];
$a[$j]=$temp;
}
}
}
print_r($a);