How can PHP developers efficiently calculate and display a user's age without storing it in the database?

When calculating and displaying a user's age without storing it in the database, PHP developers can use the DateTime class to calculate the age based on the user's birthdate. By subtracting the user's birthdate from the current date, developers can accurately determine the user's age. This approach ensures that the age is always up-to-date without the need to store it in the database. 

$birthdate = new DateTime('1990-01-01');
$currentDate = new DateTime();
$age = $birthdate->diff($currentDate)->y;

echo "User's age is: " . $age;

Keywords

PHP calculate age display age date of birth date functions

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