I know that there are many ways to convert date in PHP, but i use those to two convert from/to MySQL DB.

// this function convert date from YYYY-MM-DD to DD-MM-YYYY in order to use in HTML table for example

function mysql2table($date) {
          $new = explode("-",$date);
          $a=array ($new[2], $new[1], $new[0]);

          return $n_date=implode("-", $a);
// this function convert date from DD-MM-YYYY to YYYY-MM-DD in order to use in MySQL table in DATE format for example

 function table2mysql($year,$month,$day) {

         if ($day<=9) { $day="0".$day; }
         if ($month<=9) { $month="0".$month; }
         $a=array ($year, $month, $year);

         return $n_date=implode("-", $a);

you have any idea where i learn PHP first time?
I have only HTML idea

You could use the date format at the data source... when you run the sql query:

SELECT date_format(date_column, '%M %D, %Y') as date FROM table;

please the format to any format