README

Simple form data / any array validation tool.

• Component validates an array by provided rules list.
• Its possible to use multiple configurations of one rule for one field in one validation run.
• Not dependant on other third party components.
• Tested with PHP 7.3 and up, including PHP 8.0. Fits PSR-12 coding style.

Installation

Installation via composer:

composer require fresh-advance/array-validator

Usage example

use Sieg\ArrayValidator\Keys;
use Sieg\ArrayValidator\Rule;
use Sieg\ArrayValidator\RuleCase;
use Sieg\ArrayValidator\RuleCaseCollection;
use Sieg\ArrayValidator\Validator;

$configurationExample = new RuleCaseCollection(
    new RuleCase(
        new Keys\All(),
        new Rule\LengthRange(5, 7)
    ),
    new RuleCase(
        new Keys\Collection('field1', 'field3'),
        new Rule\Expression('/value\d+/')
    ),
    new RuleCase(
        new Keys\Expression('/2$/'),
        new Rule\Expression('/value\d+/'),
        'Special message'
    )
);

$dataExample = [
    'field1' => 'value1',
    'field2' => 'something'
];

$validator = new Validator($configurationExample);
$errors = $validator->validate($dataExample);
if (empty($errors)) {
    // array fits validation configuration
    echo 'ok';
} else {
    print_r($errors);
}

Gives validation errors with fields as keys:

Array
(
    [field2] => Array
        (
            [0] => VALIDATOR_RULE_LENGTH_TOO_HIGH
            [1] => Special message
        )

    [field3] => Array
        (
            [0] => VALIDATOR_RULE_EXPRESSION_MATCH_FAILED
        )
)

Predefined Rules

There are some basic rules implemented with the component:

• Callback(closure $closure)

  • Takes Closure as parameter. $key and $data will be sent to Closure.

• EqualsTo(mixed $value)

  • Check if value is equal to Rule $value parameter.

• EqualsToKey(string $key)

  • Check if value is equal to other key value.

• Expression(string $regex)

  • Takes regex as parameter.

• Filter(int $filterRule, array $filterOptions)

  • Rule uses filter_var function for validating the value.
  • Takes PHP filter constants to apply as first param:
    • FILTER_VALIDATE_EMAIL
    • FILTER_VALIDATE_FLOAT
    • FILTER_VALIDATE_INT
    • FILTER_VALIDATE_IP
    • FILTER_VALIDATE_MAC
    • FILTER_VALIDATE_REGEXP
    • FILTER_VALIDATE_URL
  • Takes filter_var options array as second param.
  • Refer to filter_var function documentation for more information

• InArray(array $choices)

• Length(int $length)

• LengthRange(int $min, int $max)

• Max(int $max)

• MaxLength(int $max)

• Min(int $min)

• MinLength(int $min)

• Range(int $min, int $max)

• Required

  • Check if the field exists and not empty

Create and use custom Rules

• Custom rule should extend \Sieg\ArrayValidator\Rule\AbstractRule
• Use it as regular rules whose comes with the component.
• Validator catches \Sieg\ArrayValidator\Exception\RuleFailed type Exceptions for setting field error messages.