2024-05-06 20:40:05 +00:00
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---
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2024-10-29 18:27:12 +00:00
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date: 2020-11-13
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2024-05-06 20:40:05 +00:00
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id: 942ca5cd-5ca6-4ec9-9dd6-652a0b791245
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title: Type Constraint
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---
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# Description
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Validates that a given value is of a specific type. This type can be any
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of the valid PHP types[^1], any of the PHP ctype functions[^2] (e.g.
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alnum, alpha, digit, etc.) and also the FQCN of any class
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# Syntax
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``` php
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// src/Entity/Author.php
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namespace App\Entity;
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use Symfony\Component\Validator\Constraints as Assert;
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class Author
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{
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/**
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* @Assert\Type("Ramsey\Uuid\UuidInterface")
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*/
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protected $id;
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/**
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* @Assert\Type("string")
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*/
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protected $firstName;
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// ...
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}
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```
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# Changelog
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- [Type Constraint Can Be An Array of
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Types](20201113172816-type_constraint_can_be_an_array_of_types)
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# Footnotes
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[^1]: <https://www.php.net/manual/en/language.types.intro.php>
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[^2]: <https://php.net/ref.ctype>
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