wordpress - PHP Rendering Age -

i'm using wordpress , want age update dynamically in posts.

i using below code in functions.php:

function internoetics_determine_age($atts) { extract( shortcode_atts( array( 'dob' => '' /* see post date formats */ ), $atts ) ); $age = floor((time() - strtotime($dob)) / 31556926); return $age; } add_shortcode('age', 'internoetics_determine_age'); 

i use shortcode [age dob="1945"] result displayed -16, should 71.

any ideas?

strtotime function works dates strtotime(1945) incorrect. strtotime('1945-01-01') correct so:

$age = floor((time() - strtotime(((int)$dob) . '-01-01')) / 31556926); 

but should use:

$age = date('y') - ((int)$dob); 

*((int)$dob) in case $dob has different format