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run code in 200+ php & hhvm versions
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<?php $fruits = array ("mango", "apple", "pear", "peach"); $fruits = array_flip($fruits); echo ($fruits[mango]); ?>
based on fr0bf
Output for 7.2.0
Warning: Use of undefined constant mango - assumed 'mango' (this will throw an Error in a future version of PHP) in /in/eeBiN on line 4 0
Output for 5.3.21 - 7.1.10
Notice: Use of undefined constant mango - assumed 'mango' in /in/eeBiN on line 4 0