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<?php $testarr=array(1,2,3,4); $testarr2=&$testarr; $testarr[1]=6; print_r($testarr);print_r($testarr2);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 1 [1] => 6 [2] => 3 [3] => 4 ) Array ( [0] => 1 [1] => 6 [2] => 3 [3] => 4 )