php php百分比计算
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时间:2020-08-25 08:07:17 来源:igfitidea点击:
php percent calculation
提问by Joeeee
how to implement calculation of percents:
如何实现百分比计算:
$x=3;
$y = 100$x; // 3.333..
$x*$y - and here I need to get 100 without Observational error
Any ideas?
有任何想法吗?
回答by Patrick Moore
Your backslash (\) is not the division symbol. You must use division /symbol.
您的反斜杠 ( \) 不是除法符号。您必须使用除法/符号。
Here's an example using number_format()which will round to two decimal places (the hundredths position).
这是一个示例,使用number_format()它会四舍五入到两位小数(百分位)。
$x = 3;
$y = 15;
$percent = $x/$y;
$percent_friendly = number_format( $percent * 100, 2 ) . '%'; // change 2 to # of decimals

