What is the best way to merge two arrays in PHP while maintaining their original values?
When merging two arrays in PHP, we can use the `array_merge()` function to combine the values of both arrays into a new array. However, if we want to maintain the original values of both arrays without overwriting any duplicates, we can use the `array_merge_recursive()` function. This function recursively merges the two arrays, combining elements with the same string keys instead of overwriting them.
$array1 = ['a' => 'apple', 'b' => 'banana'];
$array2 = ['b' => 'blueberry', 'c' => 'cherry'];
$mergedArray = array_merge_recursive($array1, $array2);
print_r($mergedArray);