How can the consideration of leap years and time zones affect age calculation in PHP?

When calculating age in PHP, it's important to consider leap years to accurately calculate the number of days between two dates. Additionally, time zones should be taken into account to ensure that the age calculation is consistent regardless of the user's location. By accounting for leap years and time zones, you can accurately determine a person's age in PHP. 

$dateOfBirth = new DateTime('1990-02-28');
$currentDate = new DateTime('now', new DateTimeZone('UTC'));

$diff = $currentDate->diff($dateOfBirth);

$age = $diff->y;

echo "Age: " . $age;

Keywords

leap years time zones age calculation PHP DateTime date_diff

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