DaniWeb Forum Index > Web Development > PHP

Age Calculation

Please support our PHP advertiser: PostgreSQL or MySQL? Compare and contrast the two most popular open source databases

Thread Solved

•

Join Date: Feb 2008

Posts: 49

Reputation: emhmk1 is an unknown quantity at this point

Solved Threads: 0

emhmk1

Offline

Light Poster

Age Calculation

Nov 3rd, 2009

Hi guys, i have been trawling around looking for a decent and simple way of working out an age from a birthday.

The way i'm working is a date of birth is added to a database then when pulled we echo the actual age and not the d.o.b.

It's probably quite simple but i can't seem to figure it out, Also there may not be an actual day eg 06/2009 instead of 13/06/2009 if you see my meaning.

Any direction would be great!

Thanks again...

•

Join Date: Aug 2009

Posts: 49

Reputation: EvolutionFallen is an unknown quantity at this point

Solved Threads: 8

EvolutionFallen EvolutionFallen is offline

Offline

Light Poster

Nov 3rd, 2009

How about converting the date string into a UNIX timestamp, then subtracting that stamp from today's stamp?
Something like:

 Help with Code Tags 
 PHP Syntax (Toggle Plain Text) 
$b_day = strtotime("1/1/1970"); // UNIX time for birthday
$today = strtotime(date("m/d/Y"));
$age = date("your formatting string here", $today - $b_day));
$b_day = strtotime("1/1/1970"); // UNIX time for birthday
$today = strtotime(date("m/d/Y"));
$age = date("your formatting string here", $today - $b_day));

•

Join Date: Oct 2006

Posts: 1,096

Reputation: ardav will become famous soon enough

Solved Threads: 138

ardav

Offline

Veteran Poster

-1

Nov 3rd, 2009

Should be clear from the next row but if not:

 Help with Code Tags 
 PHP Syntax (Toggle Plain Text) 
b_day = strtotime("1/1/1970") //is also in m/d/Y (US) format
b_day = strtotime("1/1/1970") //is also in m/d/Y (US) format

@EF - sorry for jumping in.

If you don't reply to your own thread or you can't find the solved link - you're off my Christmas list - permanently! Bah humbug!

•

Join Date: Feb 2008

Posts: 49

Reputation: emhmk1 is an unknown quantity at this point

Solved Threads: 0

emhmk1

Offline

Light Poster

Nov 3rd, 2009

Thanks guys for the help, sorted now!!

Cheers...

•

Join Date: Aug 2009

Posts: 49

Reputation: EvolutionFallen is an unknown quantity at this point

Solved Threads: 8

EvolutionFallen EvolutionFallen is offline

Offline

Light Poster

Nov 3rd, 2009

You're welcome emhmk1.
No problem ardav =) I was in a rush so I was worrying more bout typing the code than placing comments. Thanks for filling it in.