http://dumpz.org/9259/

<?php
//////////////////////////////////////////////////////////////////////////////////////////////////

require_once('mvcinput.php');

define ( 'ADD' , true );
define ( 'REWRITE' , false );

class FormController {

	/**
	 * Required Values
	 *
	 * @var string $name
	 * @var string $title
	 */
	public $name;
	public $header;

	/**
	 * Optional Values
	 *
	 * @var string $info
	 */
	private $info;

	/**
	 * System Values
	 *
	 * @var string $errors
	 */
	private $errors;

	/**
	 * $items - array with form items
	 *
	 * @var unknown_type
	 */
	private $items = array();

	/**
	 * Model and View for the input
	 *
	 * @var object $model
	 * @var object $view
	 */
	private $model;
	private $view;

	function __construct( $name = 'form' , $header = '' ) {
		/********************************/
		$this->name   = $name;
		$this->header = $header;


		/********************************/
		$this->error  = false;
		$this->result = false;

		/********************************/
		$name = 'form';

		$model_name = $name . 'Model';
		$view_name  = $name . 'View';

		/********************************/
		$this->model  = new $model_name();
		$this->view   = new $view_name();
	}


	private function GetData(){
		/***********************************************/
		$data['name']   = $this->name;
		$data['header'] = $this->header;
		$data['info']   = $this->info;
		$data['errors'] = $this->errors;
		$data['items']  = $this->items;

		return $data;
	}


	function Make() {

		$data =  $this->GetData();

		// данные отправлены
		if ( $_POST['do'] == 'register_go' ) {
			$this->model->Validate( $this->GetData() );
		}

		return $this->view->Make( $this->GetData() );
	}

	function AddItem( $input ){
		$this->items[$input->name] = &$input;
	}

	/**
	 * Set info for the form
	 *
	 * add values:
	 *  ADD     - add the info
	 *  REWRITE - rewrite form info
	 * 
	 * @param string $info
	 * @param mixed $add
	 */
	function SetInfo( $info , $add = false ){
		$info = nl2br( $info );

		if ( $add ){
			$this->info = $this->info . $info;
		}
		else {
			$this->info = $info;
		}
	}

	/**
	 * Echo input returned by make function
	 * 
	 */
	function Display(){
		echo $this->Make();
	}

} // class Controller
//////////////////////////////////////////////////////////////////////////////////////////////////


class FormView {
	/**
	 * Makes the the form
	 *
	 * @param string header
	 * @param string body
	 * @param string info
	 * @param string errors
	 */
	static function Make( $data ) {
		/****************************
		data array
		****************************/
		$name   = $data['name'];
		$header = $data['header'];
		/***************************/
		$info      = $data['info'];
		$items     = $data['items'];
		$validated = $data['validated'];
		/***************************/
		$errors = '';
		$body   = '';
		/***************************/
		foreach ( $items as $item ){
			$body .= '
	<li>
		' . $item->Make() .'
	</li>
		';
			if ( $error = $item->GetErrorMessage() ){
				$errors .= $error . "<br/>\n";
			}
		}
		/****************************
		<p>aragraphs with info
		****************************/
		if ( $header ){
			$header = '<h3>' .  $header . '</h3>' . "\n";
		}

		if ( $info ){
			$info   = '<p class="info">' . "\n\t" . $info . '</p>' . "\n";
		}

		if ( $errors ){
			$errors = '<p class="errors">' . "\n\t" . $errors . '</p>' . "\n";
		}

		if ( $body  ){
			$body   = '<ul id="fieldlist">' . "\n\t" .  $body . "\n" . '</ul>' . "\n";
		}

		return '
<fieldset id="' . $name . '">
	'   . $header . '
<form action="" method="post" enctype="multipart/form-data">
<input type="hidden" name="do" value="register_go" />
	'   . $info
		. $errors
		. $body . '
<span class="hide">Поля отмеченные звездочкой( * ) обязательны для заполнения.</span>
<div class="button"><input type="submit" name="submit" value="Зарегистрироваться"  /></div>
</form>
</fieldset>
';
	}

} // class View
//////////////////////////////////////////////////////////////////////////////////////////////////

class FormModel {

	public $data;

	function __construct() {

		$this->data = false;

	}

	function Validate( $data ) {
		$items = $data['items'];

		foreach ( $items as $item ){
			$item->Validate();
		}
	}

}
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ru" lang="ru">
<head profile="http://gmpg.org/xfn/11">
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="style.css" title="base" />
 <script type="text/javascript" src="../jQuery/jquery.js"></script>
 <script type="text/javascript" src="../jQuery/roundCorners.jQuery.js"></script>
 
<style>
label {
	color: #66f;
	margin: 0px 0px 6px 0px;
	width:30%;
	border: 2px ridge #669;
	background-color: #ffc;
	clear: none;
	margin: 0px 10% 0px 20%;
}


label.normal{
	border-color: yellow;
}

label.warn{
	border-color: red;
}

label.good{
	border-color: green;
}
input{
	border: 2px ridge #669;
	background: #69f;
	color: #ffc;
	font-weight: bold;
	margin: 0px 20% 0px 10%;
	width: 30%;
	clear: none;
}
.button input {
	background-color: #99f;
	border: 2px ridge black;
	width: 40%;
	margin: 0px 30% 0px 30%;
}
</style>
<?

/****************************
Creating form and its elements
****************************/
$form = new FormController( 'register_msg' , 'Регистрация' );
$form->SetInfo(
'Логин и пароль должны содержать только латинские буквы и цифры.
Длина логина - до 15 символов, пароля - до 20 символов.
Поля логин, пароль и капча обязательны к заполнению, E-Mail опционально.' );

$login = new InputController('login','Логин');
$login->SetRegExpPattern('/\d/i');
$login->SetRequired ( REQUIRED );

$password = new InputController('password','Пароль','password');
$password->SetRequired ( REQUIRED );

$email = new InputController('email','EMail');
$email->SetRegExpPattern('/^([a-z0-9])(([-a-z0-9._])*([a-z0-9]))*\@([a-z0-9])*(\.([a-z0-9])([-a-z0-9_-])([a-z0-9])+)*$/i');

$form->AddItem( $login );
$form->AddItem( $password );
$form->AddItem( $email );
$form->Display();
echo '<script type="text/javascript">$(\'.normal\').roundCorners();</script>';



function CapitalsToUnderscore( $string ){
	$string = (string)$string;
	$string = preg_replace( '/([A-Z])/e' , '_.strtolower($1)' , $string);
	if ( $string[0] == '_' ){
		$string = substr( $string , 1 );
	}
	
	return $string;
}

echo CapitalsToUnderscore( 'RandOmlYCapitaliZEDstringOo' );