1--TEST-- 2Bug #48854 (array_merge_recursive modifies arrays after first one) 3--FILE-- 4<?php 5 6$array1 = array( 7 'friends' => 5, 8 'children' => array( 9 'dogs' => 0, 10 ), 11); 12 13$array2 = array( 14 'friends' => 10, 15 'children' => array( 16 'cats' => 5, 17 ), 18); 19 20$merged = array_merge_recursive($array1, $array2); 21 22var_dump($array1, $array2); 23 24?> 25--EXPECT-- 26array(2) { 27 ["friends"]=> 28 int(5) 29 ["children"]=> 30 array(1) { 31 ["dogs"]=> 32 int(0) 33 } 34} 35array(2) { 36 ["friends"]=> 37 int(10) 38 ["children"]=> 39 array(1) { 40 ["cats"]=> 41 int(5) 42 } 43} 44