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PHP保留两位小数并且四舍五入及不四舍五入的方法

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Release: 2016-06-13 12:47:52
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php保留两位小数并且四舍五入

复制代码 代码如下:


$num = 123213.666666;
echo sprintf("%.2f", $num);


php保留两位小数并且不四舍五入

复制代码 代码如下:


$num = 123213.666666;
echo sprintf("%.2f",substr(sprintf("%.3f", $num), 0, -2));


php进一法取整

复制代码 代码如下:


echo ceil(4.3); // 5
echo ceil(9.999); // 10


php舍去法,取整数

复制代码 代码如下:


echo floor(4.3); // 4
echo floor(9.999); // 9

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