再加1小时到时间

Question

I have a function that converts long-date times to human readable format. However i need to add an hour to those times. Below is what i tired but it does not work. My original function is found below that, which does work but does not add the additional 1 hour to the time.

Not working adding an additional hour function

date_default_timezone_set('Europe/London');
    $date = date('Y-m-d');

    function convertDateTime($datestamp) {
   $dt = new DateTime("@$datestamp");
   $newdate= $dt->format('Y-m-d H:i:s');

   return $newdate("+1 hour");
}

Working function that does not add hour to the output

date_default_timezone_set('Europe/London');
    $date = date('Y-m-d');

    function convertDateTime($datestamp) {
   $dt = new DateTime("@$datestamp");
   $newdate= $dt->format('Y-m-d H:i:s');

   return $newdate;

Answer 1

Please try this

    date_default_timezone_set('Europe/London');
    $date = date('Y-m-d');

    function convertDateTime($datestamp) {
    return  date("Y-m-d H:i:s", $datestamp+3600);
    }