<?php     /**    * Multiple page form example. Shows use of a big multiple page form to    * acquire a large ammount of data.    *    * @author Thiemo Mättig (http://maettig.com/)    */     require_once("Apeform.class.php");     // Create a single form.   $form = new Apeform();     $page = 1;     // Add the first form elements.   $element0 = $form->text("First form, element 0");   if (empty($element0)) $form->error();   $form->addClass("page1");   $element1 = $form->text("First form, element 1");   if (empty($element1)) $form->error();   $form->addClass("page1");   $submit1 = $form->submit("Go to page 2");   $form->addClass("page1");     if ($form->isValid()) $page++;     // Add some more form elements.   $element3 = $form->text("Second form, element 3");   if (empty($element3)) $form->error();   $form->addClass("page2");   $submit2 = $form->submit("Go to page 1|Submit both forms");   $form->addClass("page2");     if ($form->isValid()) $page++;     if ($submit1 == "Go to page 2")   {       $page = 2;       $form->_isSubmitted = false;   }   elseif ($submit2 == "Go to page 1")   {       $page = 1;       $form->_isSubmitted = false;   }     echo '<style type="text/css">';   if ($page != 1) echo '.page1{display:none;}';   if ($page != 2) echo '.page2{display:none;}';   echo '</style>';     if (! $form->isValid())   {       // Display the form.       $form->display();   }   else   {       // Process the collected form data.       echo "INSERT INTO `table` SET `element0` = '$element0'";       echo ", `element1` = '$element1', `element3` = '$element3'";   }     ?>     |