| | |
| | | */ |
| | | public static function strtotime($date) |
| | | { |
| | | $date = trim($date); |
| | | |
| | | // check for MS Outlook vCard date format YYYYMMDD |
| | | if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) { |
| | | return mktime(0,0,0, intval($m[2]), intval($m[3]), intval($m[1])); |
| | | } |
| | | |
| | | // common little-endian formats, e.g. dd/mm/yyyy (not all are supported by strtotime) |
| | | if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})$/', $date, $m) |
| | | && $m[1] > 0 && $m[1] <= 31 && $m[2] > 0 && $m[2] <= 12 && $m[3] >= 1970 |
| | | ) { |
| | | return mktime(0,0,0, intval($m[2]), intval($m[1]), intval($m[3])); |
| | | } |
| | | $date = self::clean_datestr($date); |
| | | |
| | | // unix timestamp |
| | | if (is_numeric($date)) { |
| | | return (int) $date; |
| | | } |
| | | |
| | | // Clean malformed data |
| | | $date = preg_replace( |
| | | array( |
| | | '/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal |
| | | '/[^a-z0-9\x20\x09:+-]/i', // remove any invalid characters |
| | | '/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names |
| | | ), |
| | | array( |
| | | '\\1', |
| | | '', |
| | | '', |
| | | ), $date); |
| | | |
| | | $date = trim($date); |
| | | |
| | | // if date parsing fails, we have a date in non-rfc format. |
| | | // remove token from the end and try again |
| | |
| | | } |
| | | |
| | | $dt = false; |
| | | $date = trim($date); |
| | | $date = self::clean_datestr($date); |
| | | |
| | | // try to parse string with DateTime first |
| | | if (!empty($date)) { |
| | |
| | | return $dt; |
| | | } |
| | | |
| | | /** |
| | | * Clean up date string for strtotime() input |
| | | * |
| | | * @param string $date Date string |
| | | * |
| | | * @return string Date string |
| | | */ |
| | | public static function clean_datestr($date) |
| | | { |
| | | $date = trim($date); |
| | | |
| | | // check for MS Outlook vCard date format YYYYMMDD |
| | | if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) { |
| | | return sprintf('%04d-%02d-%02d 00:00:00', intval($m[1]), intval($m[2]), intval($m[3])); |
| | | } |
| | | |
| | | // Clean malformed data |
| | | $date = preg_replace( |
| | | array( |
| | | '/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal |
| | | '/[^a-z0-9\x20\x09:+-\/]/i', // remove any invalid characters |
| | | '/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names |
| | | ), |
| | | array( |
| | | '\\1', |
| | | '', |
| | | '', |
| | | ), $date); |
| | | |
| | | $date = trim($date); |
| | | |
| | | // try to fix dd/mm vs. mm/dd discrepancy, we can't do more here |
| | | if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})$/', $date, $m)) { |
| | | $mdy = $m[2] > 12 && $m[1] <= 12; |
| | | $day = $mdy ? $m[2] : $m[1]; |
| | | $month = $mdy ? $m[1] : $m[2]; |
| | | $date = sprintf('%04d-%02d-%02d 00:00:00', intval($m[3]), $month, $day); |
| | | } |
| | | // I've found that YYYY.MM.DD is recognized wrong, so here's a fix |
| | | else if (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})$/', $date)) { |
| | | $date = str_replace('.', '-', $date) . ' 00:00:00'; |
| | | } |
| | | |
| | | return $date; |
| | | } |
| | | |
| | | /* |
| | | * Idn_to_ascii wrapper. |
| | | * Intl/Idn modules version of this function doesn't work with e-mail address |