php date format from iso code example
Example 1: php convert date and time to iso 8601
//Object Oriented Method
$datetime = new DateTime('2010-12-30 23:21:46');
echo $datetime->format(DateTime::ATOM); // Updated ISO8601
//Procedural Method
echo date(DATE_ISO8601, strtotime('2010-12-30 23:21:46'));
Example 2: php date format iso
echo date(DATE_ISO8601, strtotime('2010-12-30 23:21:46'));