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WARNING: You are browsing the documentation for Symfony 2.2 which is not maintained anymore. Consider upgrading your projects to Symfony 5.0.

Min

2.2 version
Unmaintained
2.0 2.1

Min

Caution

The Min constraint is deprecated since version 2.1 and will be removed in Symfony 2.3. Use Range with the min option instead.

Validates that a given number is greater than some minimum number.

Applies to property or method
Options
Class Min
Validator MinValidator

Basic Usage

To verify that the "age" field of a class is "18" or greater, you might add the following:

  • YAML
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    # src/Acme/EventBundle/Resources/config/validation.yml
Acme\EventBundle\Entity\Participant:
    properties:
        age:
            - Min: { limit: 18, message: You must be 18 or older 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\Min(limit = "18", message = "You must be 18 or older to enter.")
     */
     protected $age;
}
  • XML
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    <!-- src/Acme/EventBundle/Resources/config/validation.yml -->
<?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="age">
            <constraint name="Min">
                <option name="limit">18</option>
                <option name="message">You must be 18 or older to enter.</option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/Acme/EventBundle/Entity/Participant.php
namespace Acme\EventBundle\Entity\Participant;

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

class Participant
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('age', new Assert\Min(array(
            'limit'   => '18',
            'message' => 'You must be 18 or older to enter.',
        )));
    }
}

Options

limit

type: integer [default option]

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

message

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

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