Timestamp2date

/**
 * Convert a timestamp (number) to a date
 *
 * @param mixed $timestamp A timestamp i.e. 20120525
 * @param string $format The format of the date
 *
 * @return string
 */
function timestamp2date($timestamp, $format = 'Y-m-d')
{
    $year = substr($timestamp, 0, 4);
    $month = substr($timestamp, 4, 2);
    $day = substr($timestamp, 6, 2);
 
    $date = new Datetime($year.'-'.$month.'-'.$day);
 
    return $date->format($format);
}
 
/* Example
 * =======
 */
$timestamp = 20120525;
 
$date = timestamp2date($timestamp); // 2012-05-25