Validation library

This is a lightweight PHP validation library designed to simplify the process of validating input data in web applications. It provides a set of commonly used validation rules such as required fields, maximum and minimum lengths, numeric checks, and more. With easy integration and customizable error messages, it streamlines the validation process, ensuring data integrity and user-friendly error handling.

Rules List

Rule	Description	Example
required	This field is required	required
max_length	This field must be less than {max_length} characters long	max_length[10]
min_length	This field must be at least {min_length} characters long	min_length[5]
is_numeric	This field must contain only numbers	is_numeric
valid_email	This field must contain a valid email address	valid_email
valid_url	This field must contain a valid URL	valid_url
valid_ip	This field must contain a valid IP address	valid_ip
min	This field must be greater than or equal to {min}	min[5]
max	This field must be less than or equal to {max}	max[10]
date	This field must be a valid date	date

Other Parameters

Parameter	Type	Description	Example
error_messages	Array	Custom error messages	error_messages => ['required' => 'This field is required']

Error parameters

Parameter	Description	Example
:field	Field name	'error_messages' => [ 'required' => ':field is required', 'max_length' => ':field is too long', 'min_length' => ':field is too short' ]
:number	Field Number	'error_messages' => [ 'min' => ':field must be greater than or equal to :number', 'max' => ':field must be less than or equal to :number' ]

set rules...

$rules = [
    'username' => 'rules'...
];

//or ..

$rules = [
    'username' => [
        'rules' => 'required|max_length[10]|min_length[5]',
        'error_messages' => [
            'required' => ':field is required',
            'max_length' => 'Username is too long max: :number',
            'min_length' => 'Username is too short min:  :number'
        ]
    ]
];


$checker = $validation->validateRule($_POST, $rules);

How to install and run the project

Step 1: Install Composer

composer require luckystar/validation

Step 2: First, require the composer autoloader in your script

<?php
require_once 'vendor/autoload.php';

$validation = new LuckyStar\Validation\Validate;

// Add Rules

Step 3: Add Rules and Validate (example)

$rules = [
	'username' => [
		'rules' => 'max_length[3]|min_length[1]'
	],
	'password' => [
		'rules'  => 'max_length[10]|min_length[5]',
		'error_messages' => [
			'max_length' => 'Password is too long',
			'min_length' => 'Password is too short'
		]
	],
	'number' => [
		'rules' => 'is_numeric|max_length[8]|min_length[3]',
		'error_messages' => [
			'is_numeric' => ' Sayısal olmalı ...',
			'max_length' => 'Number is too long',
			'min_length' => 'Number is too short'
		]
	],
	'req' => [
		'rules' => 'required',
		'error_messages' => [
			'required' => 'This field is required'

		]
	]
];

$_POST = ['username' => '12345', 'password' => '12345', 'number' => '123sa45'];



$checker = $validation->validateRule($_POST, $rules);

if ($checker){
	//no errors
	foreach ($validation->getErrors() as $error){
		echo $error . "<br>";
	}
}else{
	echo "No errors";
}