Calculate the age using data from my database

Question

This is the code I\'m currently using, but it\'s not working. Geboortedatum means day of birth in Dutch.

mysql_connect(\'xxx\', \'xxx\', \'xxx\');

mysql_select_         


        

Answer 1

No need for PHP calculation. MySQL might do it by itself (with help of TIMESTAMPDIFF()):

SELECT TIMESTAMPDIFF(YEAR, `Geboortedatum`, NOW()) as `age` FROM `Personen`;

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If you store your date in format, that differs form MySQL Date format (i.e. not in YYYY-mm-dd format), then you may try to format it with STR_TO_DATE() function.

Answer 2

This works fine,but your date should be in this format : mm/dd/yyyy

<?php
         //date in mm/dd/yyyy format; or it can be in other formats as well
         $birthDate = "02/07/1990";
         //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;
    ?>

DEMO

Answer 3

Here's an approach if you want a breakdown by years, months, and Days:

$secondsInAYear     = 31536000;
$secondsInAMonth    =  2635200; //Using the average (30.5) days in a month.
$secondsInADay      =    86400;


echo $datum;
$birthDate = strtotime($datum);

$ageInSeconds   = time() - $birthDate;

$ageInYears = floor( $ageInSeconds / $secondsInAYear );
$ageRemainder   = ( $ageInSeconds % $secondsInAYear );          // $a % $b  [ Modulus:  Remainder of $a divided by $b ]     

$ageInMonths    = floor( $ageRemainder / $secondsInAMonth );
$monthsRemainder    = ( $ageRemainder % $secondsInAMonth );

$ageInDays      = floor( $monthsRemainder / $secondsInAMonth );    

echo "Age is:" .$ageInYears ." Years, " .$ageInMonths ." Months, and " .$ageInDays ." Days.;