Simple Validator

What is it?

---

A PHP library for sanitizing and validating user inputs. This library is based on https://www.phptutorial.net/ tutorial on how to make a custom input validator form scratch.

1. Installation
2. Supported input types
3. Usage

Installation

---

PHP versions 7.1 up to PHP 8.1 are currently supported.

The PECL mbstring extension is required.

It is recommended to use composer to install the library.

composer require deskola/simple-validator

You can also use any other PSR-4 compliant autoloader.

If you do not use composer, ensure that you also load any dependencies that this project has, such as giggsey/locale.

Supported input types

---

Below is the list of data type which will be sanitized against. Any data type not in the list will be result into an error

1. string
2. int
3. email
4. float
5. url

Supported Rules

---

Below are the rule that can be passed against an input

Rule	Rule name	Parameter	Meaning
required	required	No	The field is set and not empty
alphanumeric	alphanumeric	No	The field only contains letters and numbers
email	email	No	The field is a valid email address
secure	secure	No	The field must have between 8 and 64 characters and contain at least one number, one upper case letter, one lower case letter, and one special character. This rule is for the password field. example (!@#$%^&*+_)
min: 3	min	An integer specifies the minimum length of the field	The length of the field must be greater than or equal to min length, e.g., 3
max: 255	max	An integer specifies the maximum length of the field	The length of the field must be less than or equal to min length, e.g., 255
same: another_field	same	The name of another field	The field value must be the same as the value of the another_field
between: min, max	between	min and max are integers that specify the minimum and maximum length of the field	The length of the field must be between min and max.
url	url	No	The field must have a valid url starting with (http/https://)
iso:KE	iso	A string value of country ISO Name e.g. KE (for Kenya)	This library also utilises giggsey library to validate phone number based on a country ISO Name
options:1,2	options	comma separated list of items being validated against

Usage

---

require_once  'vendor/autoload.php';
$validation = new Deskola\SimpleValidator\InputFilter();

$data = [
    'name' => 'Doe',
    'email' => 'john@email.com',
    'phone' => '2547********'
];

$iso = "KE";
$fields = [
    'name' => "string| required | max: 3",
    'email' => 'email| required | email',
    'phone' => 'string| required | iso:KE'
];

$response = $validation->filter($data, $fields);

print_r($response);

Success Output

Array
(
)

Error Output

Array
(
    [name] => The name must have at most 3 characters
    [email] => The email is not a valid email address
    [phone] => The phone must be a valid phone number
)