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Example code of fesor/symfony-validator-extra

Informations about the package symfony-validator-extra

Symfony Validator Extras

In order to simplify request validation and reduce amount of boilerplate, this package provides you set of additional constraints.

Json and FixedJson constraints

If you are dealing with json requests, you probably hate Collection validator. As a replacement this library provides you two additional constraints: JsonValidator and FixedJsonValidator.

The difference between JsonValidator and FixedJsonValidator, which is both extends from CollectionValidator, is that they use different value for option allowExtraFields. FixedJson doesn't allow extra fields, but Json - just ignores that.

Shortcuts

This validator provides you some shortcuts for common validators:

this is equivalent of

List of available shortcuts:

ShortCut Constraint Used
date new Date()
datetime new DateTime()
time new Time()
email new Email()
url new Url()
file new File()
image new Image()
null new IsNull()
*any strhing* new Type('*any strhing*')

Null Safety

By default all constraint (except null) shortcuts expands with NotNull constraint. If null is acceptable value for you, you can just add question mark at the beginning of shortcut. So this rules will be equivalent:

The syntax is taken from PHP 7.1

Optional fields

If your json request has optional keys, then you probably will write something like this:

With JsonValidator the same rule can be written as:

Please note that question mark (?) will be skipped if you manually provide info about is this field is required or not. So using this rule:

validator will expect foo? containing not null value. And property bar? considered as optional since it has question mark in it's end (?).

All versions of symfony-validator-extra with dependencies

PHP Build Version
Package Version
Requires symfony/validator Version ^3.1
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