ValidatorInterface

interface ValidatorInterface implements MetadataFactoryInterface

Validates PHP values against constraints.

Methods

MetadataInterface	getMetadataFor(mixed $value) Returns the metadata for the given value.	from MetadataFactoryInterface
bool	hasMetadataFor(mixed $value) Returns whether the class is able to return metadata for the given value.	from MetadataFactoryInterface
ConstraintViolationListInterface	validate(mixed $value, Constraint\|Constraint[] $constraints = null, array\|null $groups = null) Validates a value against a constraint or a list of constraints.
ConstraintViolationListInterface	validateProperty(object $object, string $propertyName, array\|null $groups = null) Validates a property of an object against the constraints specified for this property.
ConstraintViolationListInterface	validatePropertyValue(object\|string $objectOrClass, string $propertyName, mixed $value, array\|null $groups = null) Validates a value against the constraints specified for an object's property.
ContextualValidatorInterface	startContext() Starts a new validation context and returns a validator for that context.
ContextualValidatorInterface	inContext(ExecutionContextInterface $context) Returns a validator in the given execution context.

Details

MetadataInterface getMetadataFor(mixed $value)

Returns the metadata for the given value.

Parameters

mixed

$value

Some value

Return Value

MetadataInterface

The metadata for the value

Exceptions

NoSuchMetadataException

If no metadata exists for the given value

bool hasMetadataFor(mixed $value)

Returns whether the class is able to return metadata for the given value.

Parameters

mixed

$value

Some value

Return Value

bool	Whether metadata can be returned for that value

ConstraintViolationListInterface validate(mixed $value, Constraint|Constraint[] $constraints = null, array|null $groups = null)

Validates a value against a constraint or a list of constraints.

If no constraint is passed, the constraint {@link \Symfony\Component\Validator\Constraints\Valid} is assumed.

Parameters

mixed	$value	The value to validate
Constraint\|Constraint[]	$constraints	The constraint(s) to validate against
array\|null	$groups	The validation groups to validate. If none is given, "Default" is assumed

Return Value

ConstraintViolationListInterface

A list of constraint violations If the list is empty, validation succeeded

ConstraintViolationListInterface validateProperty(object $object, string $propertyName, array|null $groups = null)

Validates a property of an object against the constraints specified for this property.

Parameters

object	$object	The object
string	$propertyName	The name of the validated property
array\|null	$groups	The validation groups to validate. If none is given, "Default" is assumed

Return Value

ConstraintViolationListInterface

A list of constraint violations If the list is empty, validation succeeded

ConstraintViolationListInterface validatePropertyValue(object|string $objectOrClass, string $propertyName, mixed $value, array|null $groups = null)

Validates a value against the constraints specified for an object's property.

Parameters

object\|string	$objectOrClass	The object or its class name
string	$propertyName	The name of the property
mixed	$value	The value to validate against the property's constraints
array\|null	$groups	The validation groups to validate. If none is given, "Default" is assumed

Return Value

ConstraintViolationListInterface

A list of constraint violations If the list is empty, validation succeeded

ContextualValidatorInterface startContext()

Starts a new validation context and returns a validator for that context.

The returned validator collects all violations generated within its context. You can access these violations with the {@link ContextualValidatorInterface::getViolations()} method.