Add_Multiple_Items_to_Associative_Arrays

To add multiple items to an existing array, you can use the += operator.

        array(4) {
  ["brand"]=>
  string(4) "Ford"
  ["model"]=>
  string(7) "Mustang"
  ["color"]=>
  string(3) "red"
  ["year"]=>
  int(1964)
}