How to convert a date of birth into an age and save it into a table?

Question

I am creating a online record for our family members.

I have two tables Member and MemberDetails, and the BirthDate is inserted in the 'member' table. I want to calculate age using this BirthDate stored in table 'Member' and store it in table MemberDetails for each member under the column 'Age'.

Answer 1

You can do this directly in SQL,

Try something like

INSERT INTO Member_Detail (id, dob)
VALUES SELECT id, TIMESTAMPDIFF(YEAR, dob, CURDATE()) FROM Member

Answer 2

Try this -

<?php
$birthDate = "05-03-1991";  // m-d-Y
$birthDate = explode("-", $birthDate);

$age = (date("md", date("U", mktime(0, 0, 0, $birthDate[0], $birthDate[1], $birthDate[2]))) > date("md")
? ((date("Y") - $birthDate[2]) - 1)
: (date("Y") - $birthDate[2]));

echo "Your age is:" . $age;

Answer 3

Example:-

<?php
  //date in mm/dd/yyyy format; or it can be in other formats as well
  $birthDate = "12/17/1983";
  //explode the date to get month, day and year
  $birthDate = explode("/", $birthDate);
  //get age from date or birthdate
  $age = (date("md", date("U", mktime(0, 0, 0, $birthDate[0], $birthDate[1], $birthDate[2]))) > date("md")
    ? ((date("Y") - $birthDate[2]) - 1)
    : (date("Y") - $birthDate[2]));
  echo "Age is:" . $age;
?>

or refer this link PHP calculate age