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<?php $format = 'Y-m-d'; $reqDate = date ( $format, strtotime ( '2014-05-31' ) )."\n"; echo $reqDate; // - 1 month echo date ( $format, strtotime ( '-1 month' . $reqDate ) );
Output for 5.3.0 - 7.1.0
2014-05-31 2014-05-01