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$num=0.0215489;
echo sprintf("%.3f", $num); // 0.022
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$num=0.0215489;
echo substr(sprintf("%.4f", $num),0,-1); // 0.021 |
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echo ceil(4.3); // 5
echo ceil(9.999); // 10
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(2)php retains three decimal places and does not round
The code is as follows
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echo floor(4.3); // 4
echo floor(9.999); // 9
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| $num=0.0215489;
echo substr(sprintf("%.4f", $num),0,-1); // 0.021
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echo round(3.4); // 3
echo round(3.5); // 4
echo round(3.6); // 4
echo round(3.6, 0); // 4
echo round(1.95583, 2); // 1.96
echo round(1241757, -3); // 1242000
echo round(5.045, 2); // 5.05
echo round(5.055, 2); // 5.06
?>
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(3) PHP takes an integer by one step (this will be used in the page number program of the paging program)
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echo ceil(4.3); // 5
echo ceil(9.999); // 10
(4) PHP rounding method to get an integer
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echo floor(4.3); // 4
echo floor(9.999); // 9
(5),round function
Example 1. round() example
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echo round(3.4); // 3<🎜>
echo round(3.5); // 4<🎜>
echo round(3.6); // 4<🎜>
echo round(3.6, 0); // 4<🎜>
echo round(1.95583, 2); // 1.96<🎜>
echo round(1241757, -3); // 1242000<🎜>
echo round(5.045, 2); // 5.05<🎜>
echo round(5.055, 2); // 5.06<🎜>
?>
http://www.bkjia.com/PHPjc/634548.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/634548.htmlTechArticleThe functions to get decimal places in php include sprintf, ceil, floor, round and other functions to achieve rounding. Below we Let’s take a look at specific examples. This article will use php to quadruple numbers...
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