Question

这是我的数组值

$months = array(01 => "Jan", 02 => "Feb", 03 => "Mar", 04 => "Apr", 05 => "May", 06 => "Jun", 07 => "Jul", 08 => "Aug", 09 => "Sep", 10 => "Oct", 11 => "Nov", 12 => "Dec");

我的输出就像这样

Array ( [1] => Jan [2] => Feb [3] => Mar [4] => Apr [5] => May [6] => Jun [7] => Jul [0] => Sep [10] => Oct [11] => Nov [12] => Dec )

为什么？

Answer 1

如果你想要前导零，你必须使用字符串键：

$months = array("01" => "Jan", "02" => "Feb", "03" => "Mar", "04" => "Apr", "05" => "May", "06" => "Jun", "07" => "Jul", "08" => "Aug", "09" => "Sep", "10" => "Oct", "11" => "Nov", "12" => "Dec");

显示当前月份：

echo($months[date('m')]);

Answer 2

您必须删除数组索引中的前导零。整数值中的前导零以octal编号格式定义数字。

如果您使用09，这意味着您要在八进制编号系统中使用9，但该系统仅支持0 - 7，以便PHP将转换它到0。

请将您的代码更改为：

$months = array(1 => "Jan", 2 => "Feb", 3 => "Mar", 4 => "Apr", 5 => "May", 6 => "Jun", 7 => "Jul", 8 => "Aug", 9 => "Sep", 10 => "Oct", 11 => "Nov", 12 => "Dec");

请同时查看：int variable with leading zero?

Answer 3

You can try it.


    $months = array("01" => "Jan", "02" => "Feb", "03" => "Mar", "04" => "Apr", "05" => "May", "06" => "Jun", "07" => "Jul", "08" => "Aug", "09" => "Sep", "10" => "Oct", "11" => "Nov", "12" => "Dec");

    $now = new \DateTime('now');
    $month = $now->format('m');




    echo $months[$month];

如何在数组中显示当前月份值

3 个答案: