Php/docs/arrayobject.exchangearray

• PHP Manual
• ArrayObject
• Exchange the array for another one

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
)