Laravel 4 Eloquent-时间戳超过3年

Question

I have a field called RegistrationDate which I need to check for time since.

I need a where claus that will do:

if (time() - strtotime($car->RegistrationDate) > 3*365.25*24*60*60)
    over 3 years old
}

So:

$cars::where('RegistrationDate', '>', '3 years old')->get();

but don't know how to do that, my dates are saved as timestamps: 2009-07-17 00:00:00.

thanks.

Answer 1

Use the Carbon Library. I think it is loaded by the laravel framework already. But if not you can load via composer. https://github.com/briannesbitt/Carbon

$cars::where('RegistrationDate', '>', Carbon\\Carbon::now()->subYears(3))->get(); Assuming $cars is an eloquent object for your Car model;

Also, unrelated to question... but your table naming conventions are a bit weird.

$cars = Car::where('registration_date', '>', Carbon\\Carbon::now()->subYears(3))->get();

Answer 2

You can also use DateTime and DateTimeInterval class:

$currentDate = new DateTime(); // get current date time
$currentDate->sub(new DateInterval('P3Y')); // substract 3 years from current date 

After that you can use $currentDate in your code like:

$cars::where('RegistrationDate', '>', $currentDate)->get();

You can also convert $currentDate to sql datetime string you needed with:

$currentDateStr = $currentDate->format('Y-m-d H:i:s');