$lastmod = '2012-11-28 10:53:17'; //MySQL datetime format
$datetime = new DateTime($lastmod);
$result = $datetime->format('Y-m-d\TH:i:sP');
echo $result; //2012-11-28T10:53:17+01:00
$lastmod = '2012-11-28 10:53:17'; //MySQL datetime format
$datetime = new DateTime($lastmod);
$result = $datetime->format('Y-m-d\TH:i:sP');
echo $result; //2012-11-28T10:53:17+01:00
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