Question

如何输出2.30之类的值？目前我得到的输出是2.3。以下是我的代码，其中24小时时间格式将转换为12小时格式：

if($openHrs['open_hours'] == NULL){

} else {
    $openHrs = explode(",", $openHrs['open_hours']);

    $weekdays = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
    $res      = array();

    $todayWeekDay = date('D'); // get today's weekday

    $todayWeekNum = array_search($todayWeekDay, $weekdays); // get number for today's weekday

    foreach($openHrs as &$temp) {

        $temp = explode(" ", $temp);

        $temp[1] = $temp[1] > 12 ? $temp[1] - 12 . ' pm' : $temp[1] . ' am';
        $temp[2] = $temp[2] > 12 ? $temp[2] - 12 . ' pm' : $temp[2] . ' am';
        // only add the item where the weekday is equal to today's
        if ($temp[0] == $todayWeekNum) {
             $res[]   = $weekdays[$temp[0]] . ' ' . $temp[1] . ' - ' . $temp[2];
        }
    }
}

问题是，2.3代替2.30获得14.30小时格式。我在这里缺少什么？

Answer 1

问题是PHP将您的时间视为浮点数！

您可以将其转换为字符串，或尝试sprintf("%0.2f", $output_variable)

应该在小数点后用两位小数格式化它。

Answer 2

您可以使用 number_format($your_number, 2, '.', '');显示最多2个十进制字符的数字。

PHP输出浮点数，带小数精度

2 个答案: