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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_php实例

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Release： 2016-05-17 08:55:19
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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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