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随机数输出有关问题

WBOY
Release： 2016-06-13 13:06:47
Original
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随机数输出问题
$randnumber=rand(1,4);
switch ($randnumber)
{
case 1:
echo "1";
break;
case 2:
echo "2";
break;
case 3:
echo "3";
break;
case 4:
echo "4";
break;
default:
 echo "0";

}

请教，以上的输出结果在1-4之间变幻，为什么不是一个固定值呢


------解决方案--------------------
固定了就不是随机数了
------解决方案--------------------
你想干嘛呢？

探讨
$randnumber=rand(1,4);
switch ($randnumber)
{
case 1:
echo "1";
break;
case 2:
echo "2";
break;
case 3:
echo "3";
break;
case 4:
echo "4";
break;
default:
echo "0";

}

请教，以上的输出结果……

------解决方案--------------------
你每次刷新就会变化
Related labels：
break case echo quot
source：php.cn
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