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run code in 150+ php & hhvm versions
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<?php var_dump(array( 'Products' => 'Produkty', 'Categories' => 'Kategorie', 'Products' => 'Produkty2' ));
based on 4fPoS
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { ["Products"]=> string(9) "Produkty2" ["Categories"]=> string(9) "Kategorie" }