- strptime: documentation ( source)
- var_dump: documentation ( source)
- mktime: documentation ( source)
- date: documentation ( source)
- setlocale: documentation ( source)
<?php
setlocale( LC_TIME, 'fr_FR' );
$date = strptime( '03 juin 2015' . ' 00:00:00', '%d %B %Y %H:%M:%S' );
$time = mktime( 0, 0, 0, $date['tm_mon'] + 1, $date['tm_mday'], $date['tm_year'] + 1900 );
var_dump( $date, $time, date( 'Y-m-d H:i:s', $time ) );