KohanaPHP » Kohana v3.x

Arr::merge() merges nested arrays differently to non-nested arrays, as demonstrated by the following example:

<?php

$a1 = array('x');
$a2 = array('y');

var_dump(Arr::merge($a1, $a2));

/*
array(1) {
  [0]=>
  string(1) "y" 
}
*/

/* Expecting:
array(1) {
  [0]=>
  string(1) "x" 
  [1]=>
  string(1) "y" 
}
*/

var_dump(Arr::merge(array($a1), array($a2)));

/*
array(1) {
  [0]=>
  array(2) {
    [0]=>
    string(1) "x" 
    [1]=>
    string(1) "y" 
  }
}
*/