PHP Arrays

What is the output of the following PHP code snippet?

<?php
$array = ["apple", "banana", "orange"];
$new_array = array_values($array);
print_r($new_array);
?>

What is the output of the following PHP code snippet?

<?php
$array1 = ["apple", "banana"];
$array2 = ["orange", "grape"];
$result = array_intersect($array1, $array2);
print_r($result);
?>

What is the output of the following PHP code snippet?

<?php
$array1 = ["apple", "banana"];
$array2 = ["orange", "grape"];
$result = array_merge($array1, $array2);
print_r($result);
?>

What is the output of the following PHP code snippet?

<?php
$array = ["apple", "banana", "orange"];
$last_element = end($array);
echo $last_element;
?>