Calculate Age from Date of Birth in PHP

AgeCalcFromDOB.php

<?php  
function getAge($dob) {
  $today = date("Y-m-d");
  $diff = date_diff(date_create($dob), date_create($today));
  return $diff->format('%yYears, %mMonths, %dDays');
}
// You can add the above function in your php library and use any where to calculate the age of the user by their date of birth. 
echo getAge('19-10-1988');
// Output: 27Years, 10Months, 19Days
?>