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run code in 150+ php & hhvm versions
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<?php $a = array('a', 'b', 'c'); $b = array('d', 'e'); $c = array_merge($a, $b); print_r($a);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => a [1] => b [2] => c )