UnsetArrayValue

API reference › yii › helpers › UnsetArrayValue

class	yii\helpers\UnsetArrayValue
Since	2.0.10
Source	framework/helpers/UnsetArrayValue.php

Object that represents the removal of array value while performing ArrayHelper::merge().

Usage example:

$array1 = [
    'ids' => [
        1,
    ],
    'validDomains' => [
        'example.com',
        'www.example.com',
    ],
];

$array2 = [
    'ids' => [
        2,
    ],
    'validDomains' => new \yii\helpers\UnsetArrayValue(),
];

$result = \yii\helpers\ArrayHelper::merge($array1, $array2);

The result will be

[
    'ids' => [
        1,
        2,
    ],
]

Methods

Method	Description	Defined by
__set_state() static	Restores class state after using var_export().	UnsetArrayValue

Method details

__set_state()

public static function __set_state(array $state): yii\helpers\UnsetArrayValue

Restores class state after using var_export().

Parameters

Parameter	Type	Description
$state	array

Returns

UnsetArrayValue

Since

2.0.16

See also

• https://www.php.net/manual/en/function.var-export.php