symfony/validator

Health v2 · maintenance only

Adoption not part of the score

2681 stars · 106 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The Symfony Validator component provides tools to validate values against configurable rules (constraints), following the JSR-303 Bean Validation specification. It is a standalone PHP library usable in any PHP project, not just Symfony applications.

Use cases

• validate form input in a php application
• validate objects before writing to a database
• add validation rules to php class properties
• validate api request payloads in php
• check string length, email format, and other constraints on values
• validate doctrine entities

When to choose

• you need robust, battle-tested data validation in a PHP project
• you want a standards-based constraint system with many built-in validators
• you use Symfony, Laravel, or Drupal and need interoperable validation

When to avoid

• you need validation in a non-PHP language
• you want a schema-based validator for raw JSON documents rather than object properties

Facets

library · maturity stable

middleware form-handling developer-tools web-development backend developer-tools php cross-platform validation constraints bean-validation symfony-component data-validation

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