KeyNested

v::keyNested(string $name)
v::keyNested(string $name, v $validator)
v::keyNested(string $name, v $validator, boolean $mandatory = true)

Validates an array key or an object property using . to represent nested data.

Validating keys from arrays or ArrayAccess instances:

$array = array(
    'foo' => array(
        'bar' => 123,
    ),
);

v::keyNested('foo.bar')->validate($array); // true

Validating object properties:

$object = new stdClass();
$object->foo = new stdClass();
$object->foo->bar = 42;

v::keyNested('foo.bar')->validate($object); // true

This rule was inspired by Yii2 ArrayHelper.

See also: