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<?php // the unroll: $arr = array(1 => 'one', 2 => 'two', 3 => 'three'); $a = &$arr[1]; var_dump($a,$arr); $a = &$arr[2]; var_dump($a,$arr); $a = &$arr[3]; var_dump($a,$arr);
Output for git.master, git.master_jit, rfc.property-hooks
string(3) "one" array(3) { [1]=> &string(3) "one" [2]=> string(3) "two" [3]=> string(5) "three" } string(3) "two" array(3) { [1]=> string(3) "one" [2]=> &string(3) "two" [3]=> string(5) "three" } string(5) "three" array(3) { [1]=> string(3) "one" [2]=> string(3) "two" [3]=> &string(5) "three" }

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