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<?php $da='2014-04-26'; $date = strtotime($da .' -6 months'); $final=date('Y-m-d', $date); echo $final1; ?>
Output for 5.0.4 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Notice: Undefined variable: final1 in /in/3BE1c on line 7
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: final1 in /in/3BE1c on line 7