Issue with date funciton in PHP -

this question has answer here:

• convert 1 date format in php 12 answers

i have 1 issue date function below have put code. please check. have used jquery calender in joomla component

 echo $data['startpublish'];      $data['startpublish'] = date('y-m-d', strtotime($data['startpublish']));     echo "?>>>>>>>>>>>".$data['startpublish'];      exit; 

i have store date mm-dd-yy format. when store 01-02-2015 store data in db in (y-m-d) format , when store 01-28-2015 (28 janvary) convert 1970-01-01.

please let me know issue . have added both screenshot well.

issue ss : http://prntscr.com/812w0c

correct ss : http://prntscr.com/812xbj

this strtotime quirk text date representation , american illogical way of saying/writing dates used in conversion having either - or / or . seperators.

quote php manual, why did go there information wonder.

note:

dates in m/d/y or d-m-y formats disambiguated looking @ separator between various components: if separator slash (/), american m/d/y assumed; whereas if separator dash (-) or dot (.), european d-m-y format assumed.

so make american date format 01-28-2015 store have convert have / seperators example

$data['startpublish'] = str_replace('-','/', $data['startpublish']);  $data['startpublish'] = date('y-m-d', strtotime($data['startpublish'])); echo "?>>>>>>>>>>>".$data['startpublish'];