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03-rules_collection.md

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Collection

Validates each key of an array, or object implementing \Traversable, with a set of validation constraints.

/** @var array<mixed, Validator> $fields */
Collection(
    array $fields, 
    bool $allowExtraFields = false,
    ?string $message = null,
    ?string $extraFieldsMessage = null,
    ?string $missingFieldsMessage = null
);

Basic Usage

Validator::collection(fields: [
    'name' => Validator::notBlank(),
    'age' => Validator::type('int')->greaterThanOrEqual(18)
])->validate([
    'name' => 'Name',
    'age' => 25
]); // true

Validator::collection(fields: [
    'name' => Validator::notBlank(),
    'age' => Validator::type('int')->greaterThanOrEqual(18)
])->validate([
    'name' => '',
    'age' => 25
]); // false ("name" is blank)

///////////////////////////////

// by default, extra fields are not allowed
Validator::collection(fields: [
    'name' => Validator::notBlank(),
    'age' => Validator::type('int')->greaterThanOrEqual(18)
])->validate([
    'name' => 'Name',
    'age' => 25,
    'email' => 'mail@example.com'
]); // false ("email" field is not allowed)

// to allow extra fields, set option to true
Validator::collection(
    fields: [
        'name' => Validator::notBlank(),
        'age' => Validator::type('int')->greaterThanOrEqual(18)
    ], 
    allowExtraFields: true
)->validate([
    'name' => 'Name',
    'age' => 25,
    'email' => 'mail@example.com'
]); // true

///////////////////////////////

// by default, missing fields are not allowed
Validator::collection(fields: [
    'name' => Validator::notBlank(),
    'age' => Validator::type('int')->greaterThanOrEqual(18)
])->validate([
    'age' => 25
]); // false ("name" is missing)

// but it is possible to use the Optional validation for optional fields
Validator::collection(fields: [
    'name' => Validator::optional(
        Validator::notBlank()
    ),
    'age' => Validator::type('int')->greaterThanOrEqual(18)
])->validate([
    'age' => 25
]); // true ("name" is optional)

Note

An UnexpectedValueException will be thrown when a value in the fields associative array is not an instance of Validator.

Note

An UnexpectedValueException will be thrown when the input value is not an array or an object implementing \Traversable.

Options

fields

type: array<mixed, Validator> required

Associative array with a set of validation constraints for each key.

allowExtraFields

type: bool default: false

By default, it is not allowed to have fields (array keys) that are not defined in the fields option. If set to true, it will be allowed (but not validated).

message

type: ?string default: {{ message }}

Message that will be shown when one of the fields is invalid.

The following parameters are available:

Parameter Description
{{ name }} Name of the invalid value
{{ field }} Name of the invalid field (array key)
{{ message }} The rule message of the invalid field

extraFieldsMessage

type: ?string default: The {{ field }} field is not allowed.

Message that will be shown when the input value has a field that is not defined in the fields option and allowExtraFields is set to false.

The following parameters are available:

Parameter Description
{{ name }} Name of the invalid value
{{ field }} Name of the invalid field (array key)

missingFieldsMessage

type: ?string default: The {{ field }} field is missing.

Message that will be shown when the input value does not have a field that is defined in the fields option.

The following parameters are available:

Parameter Description
{{ name }} Name of the invalid value
{{ field }} Name of the invalid field (array key)

Changelog

  • 1.0.0 Created