ArrayObject::exchangeArray

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    ArrayObject::exchangeArray — Exchange the array for another one

    说明

    publicArrayObject::exchangeArray(array|object$array): array

    Exchange the current array with another array or object.

    参数

    array

    The new array or object to exchange with the current array.

    返回值

    Returns the old array.

    示例

    示例 #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);

    ?>

    以上示例会输出：

    Array ( [lemons] => 1 [oranges] => 4 [bananas] => 5 [apples] => 10 ) ArrayObject Object ( [0] => Amsterdam [1] => Paris [2] => London )
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