初心者向けの最も簡単な PHP 用フォーム検証ライブラリは何ですか?

Easiest Form Validation Library for PHP

When dealing with form submissions in PHP, validating and sanitizing user input is crucial to ensure the integrity and security of your application. Here's a simple library that can help you achieve this with ease:

FormValidator Class

The FormValidator class provides an intuitive and customizable approach to form validation and sanitization. Here's how it works:

1. Create an Instance

<code class="php">$validator = new FormValidator($validations, $mandatories, $sanatations);</code>

• $validations: An array mapping field names to validation rules (e.g., 'email' => 'email', 'phone' => 'number').
• $mandatories: An array of mandatory fields that must be present in submitted data (e.g., ['name', 'email']).
• $sanatations: An array mapping field names to sanitization rules (e.g., 'username' => 'string').

2. Validate an Array of Items

<code class="php">$validator->validate($items);</code>

3. Get Validation Script

<code class="php">$validator->getScript();</code>

This script can be used to add 'unvalidated' CSS class to invalid field elements while removing it from valid ones.

4. Sanitize an Array of Items

<code class="php">$validator->sanatize($items);</code>

Sample Usage

<code class="php">$validations = ['name' => 'anything', 'email' => 'email', 'message' => 'anything'];
$mandatories = ['name', 'email'];
$sanatations = ['message'];

$validator = new FormValidator($validations, $mandatories, $sanatations);

if ($validator->validate($_POST)) {
    $_POST = $validator->sanatize($_POST);
    // Save the data and display success message
} else {
    // Display the 'unvalidated' script to highlight errors
    echo $validator->getScript();
}</code>

This simple yet powerful library provides an effortless way to handle form validation and sanitization in your PHP applications.

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