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<?php $a = [5 => 'a', 2 => 'b']; $a[] = 'c'; var_dump($a);
Output for git.master_jit, git.master, rfc.property-hooks
array(3) { [5]=> string(1) "a" [2]=> string(1) "b" [6]=> string(1) "c" }

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