shramee/Form.class.php

## Form.class.php
<?php

/**
 * Form Class
 *
 * Responsible for building forms
 *
 * @param array $elements renderable array containing form elements
 *
 * @return void
 */
 class Form {

   public $elements;
   public $form_number = 1;

   public function __construct($elements){
     $this->elements = $elements;
   }

   /**
    * Form class method to dump object elements
    *
    * The method just dumps the elements of the form passed to the instantiation.
    *
    * @return void
    *
    */
   public function dumpElements() {
     var_dump($this->elements);
   }

   /**
    * Form class method to build a form from an array
    *
    *
    * @return string $output contains the form as HTML
    *
    */
  function build() {
    $output = '';

    // For multiple forms, create a counter.
    $this->form_number++;

    // Loop through each form element and render it.
    foreach ($this->elements as $name => $elements) {
      $label = '<label>' . $elements['title'] . '</label>';
      switch ($elements['type']) {
        case 'textarea':
          $input = '<textarea name="' . $name . '" ></textarea>';
          break;
        case 'submit':
          $input = '<input type="submit" name="' . $name . '" value="' . $elements['title'] . '">';
          $label = '';
          break;
        default:
          $input = '<input type="' . $elements['type'] . '" name="' . $name . '" />';
          break;
      }
      $output .= $label . '<p>' . $input . '</p>';
    }

    // Wrap a form around the inputs.
    $output = '
      <form action="' . $_SERVER['PHP_SELF'] . '" method="post">
        <input type="hidden" name="action" value="submit_' . $this->form_number . '" />
        ' . $output . '
      </form>';

    // Return the form.
    return $output;
  }
 }

## formsList.php
<?php

/**
 * This files contains the list of forms defined
 *
 */

// Renderable array with a form elements.
$contact_form = array(
  'name' => array(
    'title' => 'Name',
    'type' => 'text',
    'validations' => array('not_empty'),
  ),
  'email' => array(
    'title' => 'Email',
    'type' => 'email',
    'validations' => array('not_empty', 'is_valid_email'),
  ),
  'comment' => array(
    'title' => 'Comments',
    'type' => 'textarea',
    'validations' => array('not_empty'),
  ),
  'submit' => array(
    'title' => 'Submit me!',
    'type' => 'submit',
  ),
);

## index.php
<?php

require_once 'formsList.php';
require_once 'classes/Form.class.php';

$form = new Form($contact_form);
$form_html = $form->build();
?>

<!DOCTYPE html>
<html>
<head>
	<title>The index file</title>
</head>
<body>
<?php echo $form_html; ?>
</body>
</html>
	<?php

	/**
	* Form Class
	*
	* Responsible for building forms
	*
	* @param array $elements renderable array containing form elements
	*
	* @return void
	*/
	class Form {

	public $elements;
	public $form_number = 1;

	public function __construct($elements){
	$this->elements = $elements;
	}

	/**
	* Form class method to dump object elements
	*
	* The method just dumps the elements of the form passed to the instantiation.
	*
	* @return void
	*
	*/
	public function dumpElements() {
	var_dump($this->elements);
	}

	/**
	* Form class method to build a form from an array
	*
	*
	* @return string $output contains the form as HTML
	*
	*/
	function build() {
	$output = '';

	// For multiple forms, create a counter.
	$this->form_number++;

	// Loop through each form element and render it.
	foreach ($this->elements as $name => $elements) {
	$label = '<label>' . $elements['title'] . '</label>';
	switch ($elements['type']) {
	case 'textarea':
	$input = '<textarea name="' . $name . '" ></textarea>';
	break;
	case 'submit':
	$input = '<input type="submit" name="' . $name . '" value="' . $elements['title'] . '">';
	$label = '';
	break;
	default:
	$input = '<input type="' . $elements['type'] . '" name="' . $name . '" />';
	break;
	}
	$output .= $label . '<p>' . $input . '</p>';
	}

	// Wrap a form around the inputs.
	$output = '
	<form action="' . $_SERVER['PHP_SELF'] . '" method="post">
	<input type="hidden" name="action" value="submit_' . $this->form_number . '" />
	' . $output . '
	</form>';

	// Return the form.
	return $output;
	}
	}
	<?php

	/**
	* This files contains the list of forms defined
	*
	*/

	// Renderable array with a form elements.
	$contact_form = array(
	'name' => array(
	'title' => 'Name',
	'type' => 'text',
	'validations' => array('not_empty'),
	),
	'email' => array(
	'title' => 'Email',
	'type' => 'email',
	'validations' => array('not_empty', 'is_valid_email'),
	),
	'comment' => array(
	'title' => 'Comments',
	'type' => 'textarea',
	'validations' => array('not_empty'),
	),
	'submit' => array(
	'title' => 'Submit me!',
	'type' => 'submit',
	),
	);
	<?php

	require_once 'formsList.php';
	require_once 'classes/Form.class.php';

	$form = new Form($contact_form);
	$form_html = $form->build();
	?>

	<!DOCTYPE html>
	<html>
	<head>
	<title>The index file</title>
	</head>
	<body>
	<?php echo $form_html; ?>
	</body>
	</html>