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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1); $a =& $arr[0]; //$a and $arr[0] are in the same reference set $arr2 = $arr; //not an assignment-by-reference! $arr2[0]++; /* $a == 2, $arr == array(2) */ /* The contents of $arr are changed even though it's not a reference! */ var_dump($a); var_dump($arr);
Output for 4.3.0 - 7.1.0
int(2) array(1) { [0]=> &int(2) }