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File Content: `ConstraintValidator.php`

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Validator;

use Symfony\Component\Validator\Context\ExecutionContextInterface;

/**
 * Base class for constraint validators.
 *
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
abstract class ConstraintValidator implements ConstraintValidatorInterface
{
    /**
     * Whether to format {@link \DateTime} objects, either with the {@link \IntlDateFormatter}
     * (if it is available) or as RFC-3339 dates ("Y-m-d H:i:s").
     */
    public const PRETTY_DATE = 1;

    /**
     * Whether to cast objects with a "__toString()" method to strings.
     */
    public const OBJECT_TO_STRING = 2;

    /**
     * @var ExecutionContextInterface
     */
    protected $context;

    /**
     * {@inheritdoc}
     */
    public function initialize(ExecutionContextInterface $context)
    {
        $this->context = $context;
    }

    /**
     * Returns a string representation of the type of the value.
     *
     * This method should be used if you pass the type of a value as
     * message parameter to a constraint violation. Note that such
     * parameters should usually not be included in messages aimed at
     * non-technical people.
     *
     * @param mixed $value The value to return the type of
     *
     * @return string
     */
    protected function formatTypeOf($value)
    {
        return get_debug_type($value);
    }

    /**
     * Returns a string representation of the value.
     *
     * This method returns the equivalent PHP tokens for most scalar types
     * (i.e. "false" for false, "1" for 1 etc.). Strings are always wrapped
     * in double quotes ("). Objects, arrays and resources are formatted as
     * "object", "array" and "resource". If the $format bitmask contains
     * the PRETTY_DATE bit, then {@link \DateTime} objects will be formatted
     * with the {@link \IntlDateFormatter}. If it is not available, they will be
     * formatted as RFC-3339 dates ("Y-m-d H:i:s").
     *
     * Be careful when passing message parameters to a constraint violation
     * that (may) contain objects, arrays or resources. These parameters
     * should only be displayed for technical users. Non-technical users
     * won't know what an "object", "array" or "resource" is and will be
     * confused by the violation message.
     *
     * @param mixed $value  The value to format as string
     * @param int   $format A bitwise combination of the format
     *                      constants in this class
     *
     * @return string
     */
    protected function formatValue($value, int $format = 0)
    {
        if (($format & self::PRETTY_DATE) && $value instanceof \DateTimeInterface) {
            if (class_exists(\IntlDateFormatter::class)) {
                $formatter = new \IntlDateFormatter(\Locale::getDefault(), \IntlDateFormatter::MEDIUM, \IntlDateFormatter::SHORT, 'UTC');

                return $formatter->format(new \DateTime(
                    $value->format('Y-m-d H:i:s.u'),
                    new \DateTimeZone('UTC')
                ));
            }

            return $value->format('Y-m-d H:i:s');
        }

        if ($value instanceof \UnitEnum) {
            return $value->name;
        }

        if (\is_object($value)) {
            if (($format & self::OBJECT_TO_STRING) && method_exists($value, '__toString')) {
                return $value->__toString();
            }

            return 'object';
        }

        if (\is_array($value)) {
            return 'array';
        }

        if (\is_string($value)) {
            return '"'.$value.'"';
        }

        if (\is_resource($value)) {
            return 'resource';
        }

        if (null === $value) {
            return 'null';
        }

        if (false === $value) {
            return 'false';
        }

        if (true === $value) {
            return 'true';
        }

        return (string) $value;
    }

    /**
     * Returns a string representation of a list of values.
     *
     * Each of the values is converted to a string using
     * {@link formatValue()}. The values are then concatenated with commas.
     *
     * @param array $values A list of values
     * @param int   $format A bitwise combination of the format
     *                      constants in this class
     *
     * @return string
     *
     * @see formatValue()
     */
    protected function formatValues(array $values, int $format = 0)
    {
        foreach ($values as $key => $value) {
            $values[$key] = $this->formatValue($value, $format);
        }

        return implode(', ', $values);
    }
}

Name	Size	Permission
Command	---	0755
Constraints	---	0755
Context	---	0755
DataCollector	---	0755
DependencyInjection	---	0755
Exception	---	0755
Mapping	---	0755
Resources	---	0755
Test	---	0755
Util	---	0755
Validator	---	0755
Violation	---	0755
CHANGELOG.md	17616 bytes	0644
Constraint.php	10152 bytes	0644
ConstraintValidator.php	4832 bytes	0644
ConstraintValidatorFactory.php	1247 bytes	0644
ConstraintValidatorFactoryInterface.php	709 bytes	0644
ConstraintValidatorInterface.php	769 bytes	0644
ConstraintViolation.php	5006 bytes	0644
ConstraintViolationInterface.php	4166 bytes	0644
ConstraintViolationList.php	4370 bytes	0644
ConstraintViolationListInterface.php	1666 bytes	0644
ContainerConstraintValidatorFactory.php	1995 bytes	0644
GroupSequenceProviderInterface.php	655 bytes	0644
LICENSE	1068 bytes	0644
ObjectInitializerInterface.php	678 bytes	0644
README.md	579 bytes	0644
Validation.php	2968 bytes	0644
ValidatorBuilder.php	14022 bytes	0644
composer.json	3017 bytes	0644

File Content: ConstraintValidator.php

File Content: `ConstraintValidator.php`