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<?php $data=['a'=>['b'=>['c'=>33,'d'=>44]]]; print_r($data); function &get_link(&$d) { return $d['a']['b']['c']; } $link =& get_link($data); $link = 66; print_r($data);
Output for 7.4.33
Array ( [a] => Array ( [b] => Array ( [c] => 33 [d] => 44 ) ) ) Array ( [a] => Array ( [b] => Array ( [c] => 66 [d] => 44 ) ) )

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