README

Installation

This package uses Composer, please checkout the composer website for more information.

The following command will install zip-code-validator into your project. It will also add a new entry in your composer.json and update the composer.lock as well.

$ composer require barbieswimcrew/zip-code-validator

This package follows the PSR-4 convention names for its classes, which means you can easily integrate zip-code-validator classes loading in your own autoloader.

What now?

For validating a zip code you need to instantiate a new ZipCode class provided by this package to set it as a constraint to your form field, for example:

<?php
//...
$form = $this->createFormBuilder($address)
    ->add('zipcode', TextType::class, [
        'constraints' => [
            new ZipCodeValidator\Constraints\ZipCode(iso: 'DE')
        ]
    ])
    ->add('save', SubmitType::class, ['label' => 'Create Task'])
    ->getForm();

Another way would be to use the constraint as an annotation of a class property, for example:

<?php

use ZipCodeValidator\Constraints\ZipCode;

class Address
{
    /**
     * @ZipCode(iso="DE")
     */
    protected $zipCode;
}

You can also use it as a PHP8 Attribute with named parameters:

<?php

use ZipCodeValidator\Constraints\ZipCode;

class Address
{
    #[ZipCode(iso: 'DE')]
    protected $zipCode;
}

Legacy array options are still supported for backward compatibility:

#[ZipCode(['iso' => 'DE'])]

Please consider to inject a valid ISO 3166 2-letter country code (e.g. DE, US, FR)!

NOTE: This library validates against known zip code regex patterns and does not validate the existence of a zipcode.

Use a getter to inject the country code dynamically

If you have a form, in which the user can select a country, you may want to validate the zip code dynamically. In this case you can use the getter option instead:

<?php

use ZipCodeValidator\Constraints\ZipCode;

class Address
{
    /**
     * @ZipCode(getter="getCountry")
     */
    protected $zipCode;

    protected $country;

    public function getCountry()
    {
        return $this->country;
    }
}

To disable that the validator throws an exception, when the zip code pattern is not available for a country, you can set the strict option to FALSE.

/**
 * @ZipCode(getter="getCountry", strict=false)
 */
protected $zipCode;

The validator will not validate empty strings and null values. To disallow them use the Symfony stock NotNull or NotBlank constraint in addition to ZipCode.

/**
 * @ZipCode(getter="getCountry")
 * @NotBlank 
 */
protected $zipCode;

Case insensitive zip code matching

In case you want to match the zip code in a case insensitive way you have to pass a caseSensitiveCheck parameter with false value via the constructor:

$constraint = new ZipCode(iso: 'GB', caseSensitiveCheck: false);

By the default the library is using case sensitive zip code matching.

Copying / License

This repository is distributed under the MIT License (MIT). You can find the whole license text in the LICENSE file.