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<?php $a = array('foo', 'bar'); $b = array('baz'); $c = array($a, $b); var_dump(array_reduce($c, function ($a, $b) { return array_merge($a, $b); }, array()));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> string(3) "foo" [1]=> string(3) "bar" [2]=> string(3) "baz" }

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