respect-validation/docs/KeySet.md

KeySet

• v::keySet(Key $rule...)

Validates a keys in a defined structure.

$dict = ['foo' => 42];

v::keySet(
    v::key('foo', v::intVal())
)->validate($dict); // true

Extra keys are not allowed:

$dict = ['foo' => 42, 'bar' => 'String'];

v::keySet(
    v::key('foo', v::intVal())
)->validate($dict); // false

Missing required keys are not allowed:

$dict = ['foo' => 42, 'bar' => 'String'];

v::keySet(
    v::key('foo', v::intVal()),
    v::key('bar', v::stringType()),
    v::key('baz', v::boolType())
)->validate($dict); // false

Missing non-required keys are allowed:

$dict = ['foo' => 42, 'bar' => 'String'];

v::keySet(
    v::key('foo', v::intVal()),
    v::key('bar', v::stringType()),
    v::key('baz', v::boolType(), false)
)->validate($dict); // true

The keys' order is not considered in the validation.

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See also:

• Key