PHP MongoDate / DateTime错误或误解

问题描述：

Is there something wrong with the MongoDate feature?

When I convert a DateTime Object to MongoDate, and then I try to convert it back to DateTime, I get a totally different value. Keep in mind we're talking about a date within the EPOCH limits.

Here's a way to reproduce the issue.

$dateTime  = new DateTime( '2015-07-20 10:15:45', new DateTimeZone( 'Europe/London' ) );

$mongoDate = new MongoDate( $dateTime->getTimeStamp() );

echo $mongoDate->sec ."
"; // 1437383745

echo date( 'Y-m-d H:i:s', $mongoDate->sec ) ."
"; // 2015-07-20 11:15:45

$dateTime2 = $mongoDate->toDateTime();

echo $dateTime2->format('Y-m-d H:i:s') ."
"; // 1969-12-15 10:41:40

Is this behaviour normal?

MongoDate功能有问题吗？ p>

当我转换a时 DateTime对象到MongoDate，然后我尝试将其转换回DateTime，我得到一个完全不同的值。请记住，我们正在讨论EPOCH限制内的日期。 p>

这是重现问题的方法。 p>

  $ dateTime  = new DateTime（'2015-07-20 10:15:45'，new DateTimeZone（'Europe / London'））; 
 
 $ mongoDate = new MongoDate（$ dateTime-＆gt; getTimeStamp（））; 
  
echo $ mongoDate-＆gt; sec。“
”;  // 1437383745 
 
echo date（'Y-m-d H：i：s'，$ mongoDate-＆gt; sec）。“
”;  // 2015-07-20 11：15：45 
 
 $ dateTime2 = $ mongoDate-＆gt; toDateTime（）; 
 
echo $ dateTime2-＆gt; format（'Ymd H：i：s'）。“  
“;  // 1969-12-15 10：41：40 
  code>  pre> 
 
 这种行为是否正常？ p> 
  div>

答

You have timezone issue. When you create DateTime object, you create it in Europe/London timezone. But when you "convert" seconds back to datetime format, you use date() function, which uses default timezone, which apparently is different from Europe/London.

Create DateTime object with $mongoDate->sec and then convert timezone.

$dt = new DateTime('@' . $mongoDate->sec);
$dt->setTimezone(new DateTimeZone('Europe/London'));
echo $dt->format('c');

PHP MongoDate / DateTime错误或误解

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