How To Calculate Age from Date of Birth in PHP Tutorial

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Inside this article we will see the concept to calculate age from date of birth in php. Article contains classified information about calculating age from current date in php.

If you are looking for an article which gives you the understanding to calculate age from current date then this is best to learn and get the concept.

You will see how to calculate age from current date in php in two different examples. Also you can make it as a age calculator application in PHP. You need to take age from user as an input and calculate user age with this concept.

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Let’s get started.


Example #1: Using date() & strtotime() PHP Functions

Create a file index.php at your localhost directory.

Open index.php and write this complete code into it.

<?php

$dob = '1992-06-01';
$year = (date('Y') - date('Y', strtotime($dob)));

echo $year;

Output

29

Example #2: Using DateTime() PHP Class

Create a file index.php at your localhost directory.

Open index.php and write this complete code into it.

<?php

$dob = new DateTime('1992-06-01');
$today   = new DateTime('today');

$year = $dob->diff($today)->y;

echo $year;

Output

29

We hope this article helped you to learn How To Calculate Age from Date of Birth in PHP Tutorial in a very detailed way.

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