Php instance code for age calculation based on ID card number

We only need to know the ID card generation rules. For example, the number of places from the specified location to the next is the date of departure, then we convert the date into a timestamp and then perform the addition and subtraction operation to get the age. Next we will look at the example.

We only need to know the ID card generation rules. For example, the number of places from the specified location to the next is the date of departure, then we convert the date into a timestamp and then perform the addition and subtraction operation to get the age. Next we will look at the example.

The Code is as follows:

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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