Question

我有这个$date数组：

Array
(
[start] => DateTime Object
    (
        [date] => 2013-09-19 00:00:00
        [timezone_type] => 3
        [timezone] => Europe/London
    )

[end] => DateTime Object
    (
        [date] => 2013-10-20 23:59:00
        [timezone_type] => 3
        [timezone] => Europe/London
    )

)

我想以时间戳格式回显开始日期值（2013-09-19 00:00:00）我尝试了echo $date['start']->date->getTimestamp();，但它返回了我的错误：Fatal error: Call to a member function getTimestamp() on a non-object in ...

Answer 1

您正在寻找：

echo $date['start']->format('Y-m-d H:i:s');

我相信......检查所有可能的格式here, on the manual page
不要让转储欺骗你，DateTime对象没有公共date属性，as you can see here。但是，它有一个getTimestamp方法，它返回一个int，就像time()一样，cf the manual。
您可以使用任何预定义常量（所有字符串，表示标准格式），例如：

echo $data['end']->format(DateTime::W3C);//echoes Y-m-dTH:i:s+01:00)
//or, a cookie-formatted time:
echo $data['end']->format(DateTime::COOKIE);//Wednesday, 02-Oct-13 12:42:01 GMT

注意：我在您的转储中基于 +01：00 和 GMT ，将伦敦显示为您的时区......

所以：

$now = new DateTime;
$timestamp = time();
echo $now->getTimetamp(), ' ~= ', $now;//give or take, it might be 1 second less
echo $now->format('c'), ' or ', $now->format('Y-m-d H:i:s');

阅读手册，暂时使用它，您很快就会找到DateTime课程及其所有相关课程（例如DateInterval，DateTimeImmutable等（full list here））确实非常方便......

我把一个小codepad放在一起作为例子，这是代码：

$date = new DateTime('now', new DateTimeZone('Europe/London'));
$now = time();
if (!method_exists($date, 'getTimestamp'))
{//codepad runs <PHP5.3, so getTimestamp method isn't implemented
    class MyDate extends DateTime
    {//bad practice, extending core objects, but just as an example:
        const MY_DATE_FORMAT = 'Y-m-d H:i:s';
        const MY_DATE_TIMESTAMP = 'U';
        public function __construct(DateTime $date)
        {
            parent::__construct($date->format(self::MY_DATE_FORMAT), $date->getTimezone());
        }
        /**
         * Add getTimestamp method, for >5.3
         * @return int
         **/
        public function getTimestamp()
        {//immediatly go to parent, don't use child format method (faster)
            return (int) parent::format(self::MY_DATE_TIMESTAMP);
        }
        /**
         * override format method, sets default value for format
         * @return string
         **/
        public function format($format = self::MY_FORMAT)
        {//just as an example, have a default format
            return parent::format($format);
        }
    }
    $date = new MyDate($date);
}
echo $date->format(DateTime::W3C), PHP_EOL
     ,$date->format(DateTime::COOKIE), PHP_EOL
     ,$date->getTimestamp(), ' ~= ', $now;

以时间戳格式回显数组/日期时间对象

1 个答案: