代码编辑器：
x
1
2
$a1 = array(1,30,15,7,25);3
$a2 = array(4,30,20,41,66);4
$num = array_merge($a1,$a2);5
array_multisort($num,SORT_DESC,SORT_NUMERIC);6
print_r($num);7
$a1 = array(1,30,15,7,25);$a2 = array(4,30,20,41,66);$num = array_merge($a1,$a2);array_multisort($num,SORT_DESC,SORT_NUMERIC);print_r($num);