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Symfony
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Validator
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Constraints
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AbstractComparison.php
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AbstractComparisonValidator.php
(2.22 KB)
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All.php
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AllValidator.php
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Blank.php
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BlankValidator.php
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Callback.php
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CallbackValidator.php
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CardScheme.php
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CardSchemeValidator.php
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Choice.php
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ChoiceValidator.php
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Collection
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Collection.php
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CollectionValidator.php
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Count.php
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CountValidator.php
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Country.php
(520 B)
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CountryValidator.php
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Currency.php
(522 B)
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CurrencyValidator.php
(1.25 KB)
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Date.php
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DateTime.php
(522 B)
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DateTimeValidator.php
(510 B)
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DateValidator.php
(1.25 KB)
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Email.php
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EmailValidator.php
(1.98 KB)
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EqualTo.php
(489 B)
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EqualToValidator.php
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Existence.php
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Expression.php
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ExpressionValidator.php
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False.php
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FalseValidator.php
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File.php
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FileValidator.php
(6.11 KB)
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GreaterThan.php
(497 B)
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GreaterThanOrEqual.php
(516 B)
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GreaterThanOrEqualValidator.php
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GreaterThanValidator.php
(610 B)
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GroupSequence.php
(630 B)
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GroupSequenceProvider.php
(399 B)
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Iban.php
(479 B)
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IbanValidator.php
(1.92 KB)
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IdenticalTo.php
(523 B)
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IdenticalToValidator.php
(598 B)
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Image.php
(1.91 KB)
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ImageValidator.php
(5.64 KB)
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Ip.php
(1.99 KB)
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IpValidator.php
(2.64 KB)
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Isbn.php
(1.29 KB)
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IsbnValidator.php
(2.86 KB)
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Issn.php
(578 B)
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IssnValidator.php
(1.8 KB)
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Language.php
(522 B)
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LanguageValidator.php
(1.25 KB)
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Length.php
(1.54 KB)
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LengthValidator.php
(2.21 KB)
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LessThan.php
(491 B)
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LessThanOrEqual.php
(510 B)
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LessThanOrEqualValidator.php
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LessThanValidator.php
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Locale.php
(518 B)
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LocaleValidator.php
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Luhn.php
(476 B)
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LuhnValidator.php
(1.9 KB)
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NotBlank.php
(518 B)
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NotBlankValidator.php
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NotEqualTo.php
(496 B)
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NotEqualToValidator.php
(597 B)
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NotIdenticalTo.php
(530 B)
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NotIdenticalToValidator.php
(604 B)
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NotNull.php
(516 B)
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NotNullValidator.php
(728 B)
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Null.php
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NullValidator.php
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Optional.php
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Range.php
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RangeValidator.php
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Regex.php
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RegexValidator.php
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Required.php
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Time.php
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TimeValidator.php
(1.21 KB)
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True.php
(509 B)
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TrueValidator.php
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Type.php
(774 B)
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TypeValidator.php
(1.39 KB)
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Url.php
(560 B)
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UrlValidator.php
(3.59 KB)
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Valid.php
(907 B)
Editing: IssnValidator.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\Constraints; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; use Symfony\Component\Validator\Exception\UnexpectedTypeException; /** * Validates whether the value is a valid ISSN. * * @author Antonio J. García Lagar <aj@garcialagar.es> * * @see https://en.wikipedia.org/wiki/Issn */ class IssnValidator extends ConstraintValidator { /** * {@inheritDoc} */ public function validate($value, Constraint $constraint) { if (null === $value || '' === $value) { return; } if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) { throw new UnexpectedTypeException($value, 'string'); } // Compose regex pattern $digitsPattern = $constraint->requireHyphen ? '\d{4}-\d{3}' : '\d{4}-?\d{3}'; $checksumPattern = $constraint->caseSensitive ? '[\d|X]' : '[\d|X|x]'; $pattern = "/^".$digitsPattern.$checksumPattern."$/"; if (!preg_match($pattern, $value)) { $this->context->addViolation($constraint->message); } else { $digits = str_split(strtoupper(str_replace('-', '', $value))); $sum = 0; for ($i = 8; $i > 1; $i--) { $sum += $i * (int) array_shift($digits); } $checksum = 'X' == reset($digits) ? 10 : (int) reset($digits); if (0 != ($sum + $checksum) % 11) { $this->context->addViolation($constraint->message); } } } }
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