Easiest Form Validation Library for PHP

PHP boasts a plethora of validation libraries, each with its own strengths and weaknesses. To identify the ideal choice for your project, it's essential to consider factors such as simplicity, flexibility, and error handling.

One particularly impressive option is a custom class developed by a Stack Overflow user named SchizoDuckie. This class leverages a combination of PHP's built-in filters and sanitization functions, along with an array of custom regular expressions.

Features and Functionality

The custom class provides a comprehensive set of features:

• Validation: It allows you to specify validation rules using an array of available regexes or custom filters.
• Sanitization: It enables you to clean and filter user input to protect against malicious code or data manipulation.
• Error Handling: It simplifies error handling by providing clear and actionable feedback on failed validation attempts.
• AJAX Compatibility: It can be seamlessly integrated with AJAX or iframe-based form submissions, eliminating the need for page refreshes.

Usage Example

<code class="php">$validations = [
    'name' => 'anything',
    'email' => 'email',
    'alias' => 'anything',
    'pwd' => 'anything',
    'gsm' => 'phone',
    'birthdate' => 'date'
];

$required = ['name', 'email', 'alias', 'pwd'];
$sanatize = ['alias'];

$validator = new FormValidator($validations, $required, $sanatize);

if ($validator->validate($_POST)) {
    $_POST = $validator->sanatize($_POST);
    // Perform save operation
    echo $validator->getScript() . "<script>alert('Saved changes');</script>";
} else {
    echo $validator->getScript();
}</code>

This example demonstrates how the custom class can be used to validate and sanitize user input from a POST request. If the validation is successful, the input is sanitized before saving. If any errors occur, the script returns a message indicating the issues.

Conclusion

The custom form validation class developed by SchizoDuckie offers an efficient and customizable solution for PHP projects. Its simplicity, flexibility, and robust error handling make it an ideal choice for both novice and experienced developers seeking an effective and lightweight validation solution.

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