- var_dump: documentation ( source)
- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$time = strtotime( '2014-01-31' );
$format = "\\Fm\0 j, Y";
var_dump( date( $format, $time ) );
$datetime = new DateTime( '@' . $time );
var_dump( $datetime->format( $format ) );