php number_format() 函数通过千位分组来格式化数字的实现代码
定义和用法
number_format() 函数通过千位分组来格式化数字。
语法
number_format(number,decimals,decimalpoint,separator)
参数描述
number 必需。要格式化的数字。如果未设置其他参数,则数字会被格式化为不带小数点且以逗号 (,) 作为分隔符。
decimals可选。规定多少个小数。如果设置了该参数,则使用点号 (.) 作为小数点来格式化数字。
decimalpoint可选。规定用作小数点的字符串。
separator 可选。规定用作千位分隔符的字符串。仅使用该参数的第一个字符。比如 "xyz" 仅输出 "x"。
注释:如果设置了该参数,那么所有其他参数都是必需的。
提示和注释
注释:该函数支持一个、两个或四个参数(不是三个)。
例子:
复制代码 代码如下:
echo number_format("1000000");
echo number_format("1000000",2);
echo number_format("1000000",2,",",".");
?>
输出:
复制代码 代码如下:
1,000,000
1,000,000.00
1.000.000,00

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