ArrayObject::exchangeArray
(PHP 5 >= 5.1.0, PHP 7)
ArrayObject::exchangeArray — Exchange the array for another one
说明
public ArrayObject::exchangeArray
( mixed $input
) : array
Exchange the current array with another array or object.
参数
input- The new array or object to exchange with the current array.
返回值
Returns the old array.
范例
Example #1 ArrayObject::exchangeArray() example
<?php// Array of available fruits$fruits = array("lemons" => 1, "oranges" => 4, "bananas" => 5, "apples" => 10);// Array of locations in Europe$locations = array('Amsterdam', 'Paris', 'London');$fruitsArrayObject = new ArrayObject($fruits);// Now exchange fruits for locations$old = $fruitsArrayObject->exchangeArray($locations);print_r($old);print_r($fruitsArrayObject);?>
以上例程会输出：
Array
(
[lemons] => 1
[oranges] => 4
[bananas] => 5
[apples] => 10
)
ArrayObject Object
(
[0] => Amsterdam
[1] => Paris
[2] => London
)
