关于浮点取模的一个有关问题

求助：关于浮点取模的一个问题
在书上看的一个例程

<?php<br />
$a=5;<br />
$b=3;<br />
echo $a/$b%$b;<br />
?>

上案例取模的结果为1。

以下为个人理解，但不敢肯定，请大神给予解答。
$a/$b得到一个浮点数做为被除数再与做为除数的%b进行取模，当被除数是浮点型且小于除数时，所取模不足1时，是不是把小数点后面的第一位自动进1，且不按四舍五入的原则？

分享到： 更多

------解决方案--------------------
小数舍去，整数取模

echo $a/$b; //1.6666666666667<br />
echo 1.6666666666667 % $b; //1<br />

------解决方案--------------------
除法运算符总是返回浮点数。只有在下列情况例外：两个操作数都是整数（或字符串转换成的整数）并且正好能整除，这时它返回一个整数。

取模运算符的操作数在运算之前都会转换成整数（除去小数部分）。

Related labels：

echo gt nbsp php

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