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Symfony 5: The Fast Track is the best book to learn modern Symfony development, from zero to production. +300 pages showcasing Symfony with Docker, APIs, queues & async tasks, Webpack, SPAs, etc.

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  4. Constraints
  5. Range
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Range

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Range

Validates that a given number is between some minimum and maximum number.

New in version 2.1: The Range constraint was added in Symfony 2.1.

Applies to property or method
Options
Class Symfony\Component\Validator\Constraints\Range
Validator Symfony\Component\Validator\Constraints\RangeValidator

Basic Usage

To verify that the “height” field of a class is between “120” and “180”, you might add the following:

  • YAML
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    # src/Acme/EventBundle/Resources/config/validation.yml
Acme\EventBundle\Entity\Participant:
    properties:
        height:
            - Range:
                min: 120
                max: 180
                minMessage: You must be at least 120cm tall to enter
                maxMessage: You cannot be taller than 180cm to enter
  • Annotations
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    // src/Acme/EventBundle/Entity/Participant.php
namespace Acme\EventBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Participant
{
    /**
     * @Assert\Range(
     *      min = 120,
     *      max = 180,
     *      minMessage = "You must be at least 120cm tall to enter",
     *      maxMessage = "You cannot be taller than 180cm to enter"
     * )
     */
     protected $height;
}
  • XML
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    <!-- src/Acme/EventBundle/Resources/config/validation.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <class name="Acme\EventBundle\Entity\Participant">
        <property name="height">
            <constraint name="Range">
                <option name="min">120</option>
                <option name="max">180</option>
                <option name="minMessage">You must be at least 120cm tall to enter</option>
                <option name="maxMessage">You cannot be taller than 180cm to enter</option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/Acme/EventBundle/Entity/Participant.php
namespace Acme\EventBundle\Entity;

use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Constraints as Assert;

class Participant
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('height', new Assert\Range(array(
            'min'        => 120,
            'max'        => 180,
            'minMessage' => 'You must be at least 120cm tall to enter',
            'maxMessage' => 'You cannot be taller than 180cm to enter',
        )));
    }
}

Options

min

type: integer

This required option is the “min” value. Validation will fail if the given value is less than this min value.

max

type: integer

This required option is the “max” value. Validation will fail if the given value is greater than this max value.

minMessage

type: string default: This value should be {{ limit }} or more.

The message that will be shown if the underlying value is less than the min option.

maxMessage

type: string default: This value should be {{ limit }} or less.

The message that will be shown if the underlying value is more than the max option.

invalidMessage

type: string default: This value should be a valid number.

The message that will be shown if the underlying value is not a number (per the is_numeric PHP function).

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.