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这样使用while循环很奇怪？解决思路

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Release： 2016-06-13 10:15:14
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这样使用while循环很奇怪？

PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->        $pnum=91;        $randNum=0;        while($pnum>18){                        $randNum=$pnum/2;            if($randNum
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我的本意是想获取比18小的数字，
可是，得出的是45.5?

请问错在哪里？

------解决方案--------------------
while这样用：

$pnum = 91;
while($pnum >= 18){
$pnum /= 2;
}
echo $pnum;

------解决方案--------------------
死的不能在死的循环。
我的本意是想获取比18小的数字？？你的这个是什么需求？有点糊涂

PHP code
 $pnum=91; $randNum=0; while($pnum>18){                 $randNum = $pnum = $pnum/2;     if($randNum
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source：php.cn
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