In what situations would using Unix timestamps for birthdates be advantageous or disadvantageous when calculating age in PHP?

Using Unix timestamps for birthdates can be advantageous when calculating age in PHP because it allows for easy comparison and manipulation of dates as they are represented as integers. However, it may be disadvantageous when dealing with dates before January 1, 1970, as Unix timestamps are not valid for dates prior to that. In such cases, it is better to use PHP's built-in DateTime class to calculate age accurately. 

$birthdate = strtotime('1990-05-15');
$currentDate = time();

$age = date('Y', $currentDate) - date('Y', $birthdate);
if (date('md', $currentDate) < date('md', $birthdate)) {
    $age--;
}

echo "Age: " . $age;

Keywords

Unix timestamps birthdates age calculation PHP disadvantages

Related Questions