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<?php $a = array('red', 'orange'); $b = array('yellow', 'green', 'blue'); $both = $a + $b; var_dump($both);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [0]=> string(3) "red" [1]=> string(6) "orange" [2]=> string(4) "blue" }