---
title: Data Validation - Symfony Certification Preparation List
---
[Back to index](../readme.md#table-of-contents)

# Data Validation
- [Validation - symfony.com](http://symfony.com/doc/3.0/validation.html)

## PHP object validation
- [The Basics of Validation - symfony.com](http://symfony.com/doc/3.0/validation.html#the-basics-of-validation)

## Built-in validation constraints
- [Supported Constraints - symfony.com](http://symfony.com/doc/3.0/validation.html#supported-constraints)

## Validation scopes

## Validation groups
- [How to Apply only a Subset of all Your Validation Constraints (Validation Groups) - symfony.com](http://symfony.com/doc/3.0/validation/groups.html)

## Group sequence
- [How to Sequentially Apply Validation Groups - symfony.com](http://symfony.com/doc/3.0/validation/sequence_provider.html)

## Custom callback validators

## Violations builder
---
title: Data Validation - Symfony Certification Preparation List
---
[Back to index](../readme.md#table-of-contents)

# Data Validation
- [Validation - symfony.com](http://symfony.com/doc/3.0/validation.html)

## PHP object validation
- [The Basics of Validation - symfony.com](http://symfony.com/doc/3.0/validation.html#the-basics-of-validation)

## Built-in validation constraints
- [Supported Constraints - symfony.com](http://symfony.com/doc/3.0/validation.html#supported-constraints)

## Validation scopes

## Validation groups
- [How to Apply only a Subset of all Your Validation Constraints (Validation Groups) - symfony.com](http://symfony.com/doc/3.0/validation/groups.html)

## Group sequence
- [How to Sequentially Apply Validation Groups - symfony.com](http://symfony.com/doc/3.0/validation/sequence_provider.html)

## Custom callback validators
- [Callback Constraint - symfony.com](http://symfony.com/doc/3.0/reference/constraints/Callback.html)

## Violations builder

Add Callback link to "Data Validation" topic
Add Callback link to "Data Validation" topic