/**
*
* @test
* @dataProvider providerMerge
*/
public function testMerge($expected, $array1, $array2)
{
$this->assertSame($expected, Arr::merge($array1, $array2));
}
/**
* Recursively merge two or more arrays. Values in an associative array
* overwrite previous values with the same key. Values in an indexed array
* are appended, but only when they do not already exist in the result.
*
* Note that this does not work the same as [array_merge_recursive](http://php.net/array_merge_recursive)!
*
* $john = array('name' => 'john', 'children' => array('fred', 'paul', 'sally', 'jane'));
* $mary = array('name' => 'mary', 'children' => array('jane'));
*
* // John and Mary are married, merge them together
* $john = Arr::merge($john, $mary);
*
* // The output of $john will now be:
* array('name' => 'mary', 'children' => array('fred', 'paul', 'sally', 'jane'))
*
* @param array $array1 initial array
* @param array $array2,... array to merge
* @return array
*/
public static function merge($array1, $array2)
{
if (Arr::isAssoc($array2)) {
foreach ($array2 as $key => $value) {
if (is_array($value) && isset($array1[$key]) && is_array($array1[$key])) {
$array1[$key] = Arr::merge($array1[$key], $value);
} else {
$array1[$key] = $value;
}
}
} else {
foreach ($array2 as $value) {
if (!in_array($value, $array1, true)) {
$array1[] = $value;
}
}
}
if (func_num_args() > 2) {
foreach (array_slice(func_get_args(), 2) as $array2) {
if (Arr::isAssoc($array2)) {
foreach ($array2 as $key => $value) {
if (is_array($value) && isset($array1[$key]) && is_array($array1[$key])) {
$array1[$key] = Arr::merge($array1[$key], $value);
} else {
$array1[$key] = $value;
}
}
} else {
foreach ($array2 as $value) {
if (!in_array($value, $array1, true)) {
$array1[] = $value;
}
}
}
}
}
return $array1;
}