1--TEST-- 2Bug #71756 (Call-by-reference widens scope to uninvolved functions when used in switch) 3--FILE-- 4<?php 5function a ($option) { 6 b($option['bla']); 7 c($option); 8 var_dump($option); 9} 10function b (&$string) { 11 $string = 'changed'; 12} 13function c ($option) { 14 switch ($option['bla']) { 15 case 'changed': 16 $copy = $option; 17 $copy['bla'] = 'copy'; 18 break; 19 } 20} 21a(array('bla' => 'false')); 22?> 23--EXPECTF-- 24array(1) { 25 ["bla"]=> 26 string(7) "changed" 27} 28