number_format函数用于格式化数字,并返回格式化后的字符串。
语法: number_format(number, decimals, decimal_separator, thousands_separator)
参数:
示例:
$number = 12345.6789;
$formatted_number = number_format($number, 2, ".", ",");
echo $formatted_number; // 输出:12,345.68
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