How to display a date as iso 8601 format with PHP

Question

I\'m trying to display a datetime from my MySQL database as an iso 8601 formated string with PHP but it\'s coming out wrong.

17 Oct 2008 is coming out as: 1969-12-31

Answer 1

For pre PHP 5:

function iso8601($time=false) {
    if(!$time) $time=time();
    return date("Y-m-d", $time) . 'T' . date("H:i:s", $time) .'+00:00';
}