Array Tools

Handy array tools to creating and updating objects from arrays, converting objects to arrays and validating them.

Requirements

Strictly requires PHP 7.4.

Install

Via Composer

$ composer require midorikocak/arraytools

Usage

Object and Array Conversion

Let's say you have a plain data object like this:

<?php

declare(strict_types=1);

namespace midorikocak\arraytools;

class User implements ArrayConvertableInterface, ArrayUpdateableInterface
{
    use ArrayConvertableTrait;
    use ArrayUpdateableTrait;

    private ?string $id;
    private string $username;
    private string $email;
    private string $password;

    public function __construct(?string $id, string $username, string $email, string $password)
    {
        $this->id = $id;
        $this->username = $username;
        $this->password = $password;
        $this->email = $email;
    }

    public function getId(): ?string
    {
        return $this->id;
    }

    public function setId(string $id)
    {
        $this->id = $id;
    }

    // Getters and setters

In order to convert this object to an array you should implement methods like toArray and fromArray like this.

        public function toArray(): array
        {
            $toReturn = [
                'username' => $this->getUsername(),
                'email' => $this->getEmail(),
                'password' => $this->getPassword(),
            ];
    
            if ($this->getId()) {
                $toReturn['id'] = $this->getId();
            }
    
            return $toReturn;
        }
    
        public static function fromArray($array): User
        {
            $id = $array['id'] ?? null;
            $username = $array['username'];
            $email = $array['email'];
            $password = $array['password'];
    
            return new User($id, $username, $email, $password);
        }

This would make may problems in case of change and resposibility. Instead you can use ArrayConvertableTrait in your data object implemetation.

<?php

declare(strict_types=1);

namespace midorikocak\arraytools;

class User implements ArrayConvertableInterface
{
    use ArrayConvertableTrait;

    private ?string $id;
    private string $username;
    private string $email;
    private string $password;

    // rest

Simply calling toArray() method from your object will return an array with your constructor params and their names as array keys.

Note: Trait expects that implemented object has getters.

$userData = [
    'id' => '1',
    'username' => 'midorikocak',
    'password' => '24738956349lhksbvlhf',
    'email' => 'mtkocak@gmail.com',
];


$user = new User(
    $userData['id'] ?? null,
    $userData['username'],
    $userData['email'],
    $userData['password']
);

$userArray = $user->toArray();
print_r($userArray);

Will output to:

Array
(
    [id] => 1
    [username] => midorikocak
    [password] => 24738956349lhksbvlhf
    [email] => mtkocak@gmail.com
)

fromArray

ArrayConvertableTrait also adds fromArray functionality into your object. It expects that the array has same keys with constructor parameters.

$userData = [
    'username' => 'midorikocak',
    'password' => '24738956349lhksbvlhf',
    'email' => 'mtkocak@gmail.com',
];
        
$user = User::fromArray($userData);

Object update using array data

If you use ArrayUpdateableTrait you can use setFromArray() method into your object. It will update object instance with array data.

Note: It expects that the array has same keys with setters.

$userData = [
    'id' => '2',
    'username' => 'update',
    'password' => 'updatedpw',
    'email' => 'updated@email.com',
];
        
$user->setFromArray($userData);

Array Validation

You can use ArrayValidator class to validate your arrays according to the rules you define.

use midorikocak\arraytools\ArrayValidator;

$arrayValidator = new ArrayValidator();

Array should have a key

use midorikocak\arraytools\ArrayValidator;

$toValidate = [
    'id'=>'1',
    'username'=>'uname',
    'password'=>''
];

$arrayValidator = new ArrayValidator();
$arrayValidator->hasKey('id');
echo $arrayValidator->validate($toValidate); // true

$arrayValidator->hasKey('hasan');
echo $arrayValidator->validate($toValidate); // false

Array should contain keys

$arrayValidator->hasKeys('id', 'username');
echo $arrayValidator->validate($toValidate); // true

Array should exactly have keys

$arrayValidator->keys('id', 'username', 'password');
echo $arrayValidator->validate($toValidate); // true

Array should defined keys shouldn't be empty

$arrayValidator->notEmpty('password');
echo $arrayValidator->validate($toValidate); // false

Rules are chainable

echo $arrayValidator
        ->keys('id', 'username', 'password')
        ->notEmpty('password')
        ->hasKeys('id', 'username')
        ->validate($toValidate); // false

Array can conform the defined schema

A simple schema structure can be used for checking array values. Schema values can be one of boolean, domain, int, email, mac, float, regexp and string.

$schema = [
    'username' => 'string',
    'password' => 'string',
    'email' => 'email',
];

$arrayValidator->schema($schema); // true

Array can conform user supplied function

A function that accepts an array and returns bool value can be appended to last validation.

echo $arrayValidator->validate($toValidate, function($array){
    return array_key_exists('key', $array);
}); // false

Custom Validators

To create custom validators, you may extend AbstractValidator class. Please check the source for details.

Motivation and Warning

Mostly educational purposes. Please use at your own risk.

Change log

Please see CHANGELOG for more information on what has changed recently.

Testing

$ composer test

Contributing

Please see CONTRIBUTING and CODE_OF_CONDUCT for details.

Security

If you discover any security related issues, please email mtkocak@gmail.com instead of using the issue tracker.

Credits

• Midori Kocak
• All Contributors

License

The MIT License (MIT). Please see License File for more information.