Returns whether a given datetime is valid.


date_valid_datetime(year, month, day, hour, minute, second);

参数 描述
year The year to check.
month The month to check.
day The day to check.
hour The hour to check.
minute The minute to check.
second The second to check.

返回: 布尔值


With this function you can check a datetime value to see if it is valid (returns true) or not (returns false). Note that this function will only consider a valid datetime as being after 1/1/1970 and anything before that will return false, so the earliest you can check would be:

date_valid_datetime(1970, 01, 01, 0, 0, 0);


if date_valid_datetime(2011, 9, 15, 10, 3, 30))
   mydatetime = date_create_datetime( 2011, 9, 15, 10, 3, 30 );

This will set "mydatetime" to 15th September 2011, 10:03.30, if it is a valid value (which it is).

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