How to check time between two date variables in php?

Question

I have 3 variables, which are 3 numbers (day, year, month). Together they become a date type variable. Additionally, I have a date variable that represents the current date.

How can I check if the first date is 13 years or more before the current date? Here is my code:

$usersday = (int)$_POST['day'];
$usersyear = (int)$_POST['year'];
$usersmonth = (int)$_POST['month'];
$takedate = date_create("$usersyear-$usersmonth-$usersday");
$date = date_format($takedate, 'd-m-Y');
$currentDate = date('Y-m-d');

Answer 1

The

date_*() functions and date() are part of two different date library APIs, confusingly. The object-oriented version of the date_*() functions clarifies this to some extent and is also a more powerful library. For example:

$usersyear = 2001;
$usersmonth = 1;
$usersday = 1;

$takedate = new DateTime("$usersyear-$usersmonth-$usersday");
$today    = new DateTime('today');
$diff     = $today->diff($takedate);

var_dump($diff, $diff->y);

Output:

object(DateInterval)#3 (10) {
  ["y"]=>
  int(22)
  ["m"]=>
  int(7)
  ["d"]=>
  int(15)
  ["h"]=>
  int(0)
  ["i"]=>
  int(0)
  ["s"]=>
  int(0)
  ["f"]=>
  float(0)
  ["invert"]=>
  int(1)
  ["days"]=>
  int(8262)
  ["from_string"]=>
  bool(false)
}
int(22)

Reference:https://www.php.net/manual/en/book.datetime.php