Php calculates the age based on the ID card number

Source: Internet
Author: User
Tags diff
The code is as follows: Copy code

<? Php
Function getAgeByID ($ id ){
// After this year's birthday, you will be 1 year old.
If (empty ($ id) return '';
$ Date = strtotime (substr ($ id, 6, 8 ));
// Obtain the date of birth, month, and day
$ Today = strtotime ('today ');
// Obtain the timestamp of today
$ Diff = floor ($ today-$ date)/86400/365 );
// Obtain the approximate number of years of difference between the two dates
// After strtotime is added with this number of years, get the timestamp of that day and compare it with today's timestamp.
$ Age = strtotime (substr ($ id, 6, 8). '+'. $ diff. 'Ears')> $ today? ($ Diff + 1): $ diff;
Return $ age;

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