ArrayObject::exchangeArray

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

    ArrayObject::exchangeArray — Intercambia el array por otro

    Descripción

    public ArrayObject::exchangeArray(mixed $input): array

    Intercambiar el array actual con otro array u objeto.

    Parámetros

    input

    El nuevo array u objeto a ser intercambiado con el array actual.

    Valores devueltos

    Devuelve el array antiguo.

    Ejemplos

    Ejemplo #1 ArrayObject::exchangeArray() example

    <?php
    // Array de frutas
    $fruits = array("limones" => 1, "naranjas" => 4, "bananas" => 5, "manzanas" => 10);
    // Array de lugares en Europa
    $locations = array('Amsterdam', 'Paris', 'London');

    $fruitsArrayObject = new ArrayObject($fruits);

    // Now exchange fruits for locations
    $old = $fruitsArrayObject->exchangeArray($locations);
    print_r($old);
    print_r($fruitsArrayObject);

    ?>

    El resultado del ejemplo sería:

    Array
(
    [limones] => 1
    [naranjas] => 4
    [bananas] => 5
    [manzanas] => 10
)
ArrayObject Object
(
    [0] => Amsterdam
    [1] => Paris
    [2] => London
)

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    User Contributed Notes 1 note

    up
    4
    Corentin Larose
    11 years ago
    It's worth notting that ArrayObject::exchangeArray() doesn't call ArrayObject::offsetSet() internally for each offset/property of the array/object provided in argument.It's also worth noting the let's say "unexpected" behavior of get/set:<?phpclass MyArrayObject extends ArrayObject{    public function offsetSet($name, $value)    {        parent::offsetSet($name . '_control', $value);        parent::offsetSet($name, $value);    }}$test = new MyArrayObject();$test->setFlags(\ArrayObject::ARRAY_AS_PROPS);$test['my_value_1'] = 1;$test['my_value_1'] = $test['my_value_1'] + 1;$test['my_value_1'] += 1;$test['my_value_1'] ++;++ $test['my_value_1'];$test->my_value_2 = 1;$test->my_value_2 = $test->my_value_2 + 1;$test->my_value_2 += 1;$test->my_value_2 ++;++ $test->my_value_2;print_r($test);// Prints out:MyArrayObject Object(    [storage:ArrayObject:private] => Array        (            [my_value_1_control] => 3            [my_value_1] => 5            [my_value_2_control] => 2            [my_value_2] => 5        ))?>
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