Merge Date & Time

Question

$combinedDT = date('Y-m-d H:i:s', strtotime('$date $time')); 

Date Format 2013-10-14

time format 23:40:19

i'm getting zeros when trying to store into a datetime datatype

Answer 1

You're currently doing strtotime('$date $time'). Variables wrapped in single-quotes aren't interpolated. If you use single-quotes, PHP will treat it as a literal string, and strototime() will try to convert the string $date $time into a timestamp.

It'll fail and that would explain why you're getting incorrect results.

You need to use double quotes instead:

$combinedDT = date('Y-m-d H:i:s', strtotime("$date $time"));                                             ^           ^ 

Answer 2

And for those coming here working with DateTime objects:

$date = new DateTime('2017-03-14'); $time = new DateTime('13:37:42');  // Solution 1, merge objects to new object: $merge = new DateTime($date->format('Y-m-d') .' ' .$time->format('H:i:s')); echo $merge->format('Y-m-d H:i:s'); // Outputs '2017-03-14 13:37:42'  // Solution 2, update date object with time object: $date->setTime($time->format('H'), $time->format('i'), $time->format('s')); echo $date->format('Y-m-d H:i:s'); // Outputs '2017-03-14 13:37:42'