Timestamp to normal date format and reverse conversion using PHP

I have a timestamp as 2011-08-27 18:29:31. I want to convert it to 27 Aug 2011 06.29.31 PM. Also, I want to convert this format reverse back to the 开发者_JAVA技巧previous timestamp format. How van I do this using PHP?

$converted = date('d M Y h.i.s A', strtotime('2011-08-27 18:29:31'));
$reversed = date('Y-m-d H.i.s', strtotime($converted));

Don't use date()! It`s too old function. In PHP v. 5.2 and more you should use date_format or DateTime::format object.

you can use the date_format() function

//Convert to format: 27 Aug 2011 06.29.31 PM
$converted_date = date_format('d M Y h.i.s A',strtotime($orig_date));

//Convert to format 2011-08-27 18:29:31
$converted_date = date_format('Y-m-d H:i:s',strtotime($orig_date));

Have you looked at the date functions in PHP, especially strftime (for formatting a timestamp) and strtotime

To convert from 2011-08-27 18:29:31 to 27 Aug 2011 06.29.31 PM:

echo date('d M Y, H.i.s A', strtotime('2011-08-27 18:29:31'));

To do the reverse:

echo date('Y-m-d H:i:s',strtotime('27 Aug 2011 06.29.31 PM'));

If that doesn't work, you may have to try:

$date = date_create_from_format('d M Y, H.i.s A', '27 Aug 2011 06.29.31 PM');
echo date_format("Y-m-d H:i:s",$date);