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<?php var_dump(preg_match('/\d+-\d+-\d+/', '2013-07-08')); /*var_dump(strtotime('first day')); var_dump(date('Y-m-d H:i:s', strtotime('first day'))); var_dump(strtotime('first day 00:00:00')); var_dump(date('Y-m-d H:i:s', strtotime('first day 00:00:00'))); var_dump(strtotime(date('Y-m-01 00:00:00'))); var_dump(strtotime(date("Y-m-d 00:00:00", time())) - 86400* 6); var_dump(strtotime('-6 day 00:00:00')); var_dump(strtotime(date("Y-m-d 00:00:00", time())) - 86400 * 0); var_dump(strtotime('+0 day 00:00:00')); */

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