在mm中将mmddyy转换为yyyymmdd？ [重复]

Question

This question already has an answer here:

• Convert one date format into another in PHP 15 answers

I have a date i.e, 12-20-14(mm-dd-yy) want to convert 2014-12-20(yyyy-mm-dd)

I try

$date='12-20-14';
echo date('Y-m-d',strtotime($date));// Output :- 1970-01-01

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Answer 1

The Simplest solution is

$date='12-20-14';
list($month, $date, $year) = explode('-',$date);
echo date("Y-m-d", mktime(0, 0, 0, $month, $date, $year));