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run code in 150+ php & hhvm versions
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<?php $format = 'Y-m-d'; $reqDate = date ( $format, strtotime ( '2014-03-30' ) ); echo $reqDate; // - 1 month echo date ( $format, strtotime ( '-1 month' . $reqDate ) );
Output for 4.3.0 - 5.6.23, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2014-03-302014-03-02