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<?php $arr = array('fiddle',bow); var_dump($arr);
Output for 7.2.0
Warning: Use of undefined constant bow - assumed 'bow' (this will throw an Error in a future version of PHP) in /in/3lXaF on line 3 array(2) { [0]=> string(6) "fiddle" [1]=> string(3) "bow" }
Output for 5.3.17 - 7.1.10
Notice: Use of undefined constant bow - assumed 'bow' in /in/3lXaF on line 3 array(2) { [0]=> string(6) "fiddle" [1]=> string(3) "bow" }