find if date is older than 30 days

Question

The date string looks like this

2011-08-19 17:14:40

(year-month-day hours:minutes:seconds)

How can I find out if the date is older than

Answer 1

With the meringue library, this can be done in at least two ways.

The first one looks like the following:

(new Future(
    new DateTimeParsedFromISO8601String('2011-08-19 17:14:40'),
    new NDays(30)
))
    ->earlierThan(
        new Now()
    );

The semantics is the following: first, you parse a date from an ISO8601 string, then create a future date which is thirty days later than that, and finally compare it with current datetime, that is, now.

The second way is creating an interval from a datetime range and counting the days it consists of. It looks like that:

(new TotalFullDays(
    new FromRange(
        new FromISO8601('2011-08-19 17:14:40'),
        new Now()
    )
))
    ->value();

Both approaches are quite intuitive and don't make you remember special php datetime expressions. Instead, every implementation is autocompleted; you just need to build a correct object that suits your needs.