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<?php $dateInString = '01.02.2015'; if (preg_match('/(\d{2})\.(\d{2})\.(\d{4})/', $dateInString, $m) ) { $te = strtotime(sprintf('%d-%02d-%02d 00:00:00', $m[3], $m[1], $m[2])); $ts = strtotime(sprintf('%d-01-01 00:00:00', $m[3])); echo floor(($te-$ts)/3600/24); } else { echo 'Bad format'; }

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