Need help displaying previously selected data

newbie_learn · October 24, 2011, 2:59am

Hi! I am new to PHP. I am trying to make a summary page for previously selected information. My problem is I can only show
the first information that is selected. I can’t show the rest. Can anybody please help me?
Here is the code that I wrote:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>
  	Pick a Place to Dine
  </title>
  <link rel = "stylesheet" type = "text/css" href = "" />
</head>
 
<body>

<h1>Pick a Place to Dine</h1>

<?php


$restaurant = filter_input(INPUT_POST, "restaurant");
$italian = filter_input(INPUT_POST, "italian");
$american = filter_input(INPUT_POST, "american");
$asian = filter_input(INPUT_POST, "asian");
$drink = filter_input(INPUT_POST, "drink");
$dessert = filter_input(INPUT_POST, "dessert");

if(!filter_has_var(INPUT_POST, "destination"))
{
  restaurant();
}
   if ($restaurant == "Italian")
   {
   	  showRestaurant();
	  italian();
	    if ($italian == "Pasta")
		{
			showRestaurant();
			showItalian();
			drink();
			  if ($drink == "Soda")
			  {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				  
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			  }
			  else if ($drink == "Tea")
			  {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				     if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					
			  }
			  else if ($drink == "Juice")
			  {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				  
				     if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			  }
		}
		else if ($italian == "Pizza")
		{
			showRestaurant();
			showItalian();
			drink();
			    if ($drink == "Soda")
			    {
			  	   showRestaurant();
			       showItalian();
				   showDrink();
				   dessert();
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			    }
			    else if ($drink == "Tea")
			    {
			  	   showRestaurant();
			       showItalian();
				   showDrink();
				   dessert();
				   
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			    }
			    else if ($drink == "Juice")
			    {
			  	   showRestaurant();
			       showItalian();
				   showDrink();
				   dessert();
				   
				     if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			    }  
		}
		else if ($italian == "Lasagna")
		{
			showRestaurant();
			showItalian();
			drink();
			    if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				    
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
				  
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				    
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showItalian();
				  showDrink();
				  dessert();
				  
				    if(dessert == "Cake")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Cobbler")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
					else if($dessert == "Pie")
					{
						showRestaurant();
			            showItalian();
				        showDrink();
						showDessert();
					}
				  
			   }
		}
   }
   else if ($restaurant == "American")
   {
      showRestaurant();
	  american();
	     if ($american == "Steak")
	     {
	     	showRestaurant();
			showAmerican();
			drink();
			    
			    if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			   
	     }
         else if ($american == "Burger")
		 {
		 	showRestaurant();
			showAmerican();
			drink();
			    
				if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
		 }
		 else if ($american == "Rib")
		 {
		 	showRestaurant();
			showAmerican();
			
			   if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAmerican();
				  showDrink();
			    }
		 }
   }
   else if ($restaurant == "Asian")
   {
   	  showRestaurant();
	  asian();
	     
		 if ($asian == "Noodles")
		 {
		 	showRestaurant();
			showAsian();
			drink();
			 if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			  
		 }
         else if ($asian == "Sushi")
		 {
		 	showRestaurant();
			showAsian();
			drink();
			if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			  
		 }
		 else if ($asian == "Soba")
		 {
		 	showRestaurant();
			showAsian();
			drink();
			
			if ($drink == "Soda")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Tea")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			    else if ($drink == "Juice")
			    {
			  	  showRestaurant();
			      showAsian();
				  showDrink();
			    }
			  
		 }
   }


function restaurant()
{
	
      print <<<HERE

               <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "restaurant">
                           <option selected = "selected">--- Please Choose Your Restaurant ---</option>
                           <option value = "Italian">Italian</option> 
                           <option value = "American">American</option> 
                           <option value = "Asian">Asian</option>
                        </select> 
                        
                        <input type = "submit" value = "go" /> 
                            
                  </fieldset>
               </form>
        
HERE;
}//end of restaurant
    
function italian()	
{
	 
 print <<<HERE

               <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "italian">
                           <option selected = "selected">--- Please Choose an Item ---</option>
                           <option value = "Pasta">Pasta</option> 
                           <option value = "Pizza">Pizza</option> 
                           <option value = "Lasagna">Lasagna</option>
                        </select>   
                        <input type = "submit" value = "go" /> 
                        <br />
                  </fieldset>
               </form>
HERE;
}//end of italian
  
function american()
{
	  
print <<<HERE
   
   <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "american">
                           <option selected = "selected">--- Please Choose an Item ---</option>
                           <option value = "Steak">Steak</option> 
                           <option value = "Burger">Burger</option> 
                           <option value = "Rib">Rib</option>
                        </select>   
                        <input type = "submit" value = "go" /> 
                  </fieldset>
               </form>
        
HERE;
}//end of american
   
function asian()
{
	
print <<<HERE
   
   <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "asian">
                           <option selected = "selected"> --- Please Choose an Item --- </option>
                           <option value = "Noodles">Noodles</option> 
                           <option value = "Sushi">Sushi</option> 
                           <option value = "Soba">Soba</option>
                        </select>   
                        <input type = "submit" value = "go" /> 
                  </fieldset>
               </form>
        
HERE;
}//end of asian

function drink()
{
	
print <<<HERE
   
   <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "drink">
                           <option selected = "selected">--- Please Choose a Drink ---</option>
                           <option value = "Soda">Soda</option> 
                           <option value = "Tea">Tea</option> 
                           <option value = "Juice">Juice</option>
                        </select>   
                        <input type = "submit" value = "go" /> 
                        <br />
                  </fieldset>
               </form>
        
HERE;
}//end of drink

function dessert()
{
	
	 
print <<<HERE
   
   <form action = "" method = "post">
	              <fieldset>
                        <select size ="1" name = "dessert">
                           <option selected = "selected">--- Please Choose a Dessert ---</option>
                           <option value = "Cake">Cake</option> 
                           <option value = "Cobbler">Cobbler</option> 
                           <option value = "Pie">Pie</option>
                        </select>     
                        <br />
                  </fieldset>
               </form>
HERE;
} //end of dessert

function showRestaurant()
{
	global $restaurant;
	print "<h3>You choose an $restaurant restaurant.</h3><br />";
}

function showItalian()
{
	global $italian;
	print "<h3>You choose $italian</h3><br />";	
}  

function showAmerican()
{
	global $american;
	print "<h3>You choose $american</h3><br />";	
}

function showAsian()
{
	global $asian;
	print "<h3>You choose $asian</h3><br />";	
}

function showDrink()
{
	global $drink;
	print "<h3>You choose $drink</h3> <br />";
}

function showDessert()
{
	global $dessert;
	print "<h3>You choose $dessert";
}


?>
</body>
</html>

AndyMak · October 24, 2011, 3:45am

your code confuses me. to me it seems there is “ALOT” of uneccessary repeated code. small example…


 if(dessert == "Cake") 
                    { 
                        showRestaurant(); 
                        showItalian(); 
                        showDrink(); 
                        showDessert(); 
                    } 
                    else if($dessert == "Cobbler") 
                    { 
                        showRestaurant(); 
                        showItalian(); 
                        showDrink(); 
                        showDessert(); 
                    } 
                    else if($dessert == "Pie") 
                    { 
                        showRestaurant(); 
                        showItalian(); 
                        showDrink(); 
                        showDessert(); 
                    }

each Else statement shows the exact same thing no matter if$dessert is equal to cake, pie, cobbler they all show the same functions. maybe this can be shortened? (just a suggestion)

probably just me but if the code was smaller i may be able to help sorry but hey maybe someone here could have a solution for you

DarthGuido · October 24, 2011, 9:11am

Indeed.
And it doesn’t seem like a summary page? It seems like the page where you show the form to select data?

Also, I get the feeling that you expect the code to wait for user input when you ‘print’ a form, and then continue at that point in the php code when the user sends the form? Is that true?
If so, then let me tell you, it doesn’t. Whenever the user sends a form, the php code called by the form is executed from the very beginning.

Maybe you could explain to us in plain english what you want to do?

newbie_learn · October 24, 2011, 3:56pm

I am trying to let the user choose from the drop-down list. For example if the user selects “Asian”, it prints Asian and shows the choices for Asian food. For example the user selects “Sushi”, it will display “Asian”, and “Sushi” and the drop-down list for drinks. After selecting a drink for example “Tea”, it will display “Asian”, “Sushi”, “Tea”, and the drop-down list for dessert. I don’t know how to correct the codes to make the next selection possible.

DarthGuido · October 25, 2011, 7:48am

With a ‘normal’ form, you’d have all the drop down boxes visible and populated from the start.
If you want a form that gradually displays new dropdown boxes based on the choises made so far, you have a couple of possibilities:

only PHP: You first create a form with the first drop down. The user makes a choice and sends the form. The PHP script receives the form values, and creates the new form based on the received values. Etc etc.
PHP and Javascript: You create a form with the first drop down, and store all data needed for all drop down boxes in javascript variables (or you create a form with all possible populated drop down boxes needed), and then use javascript to display/populate the following drop downs when needed based on the user choices.
PHP, Javascript and AJAX: You create a form with the first drop down. You use javascript to send an AJAX request to the server whenever the user changes the value of a dropdown. The PHP script called by the AJAX request creates the HTML code for the next dropdown and sends it back to the browser, where the javascript will put it in the right place.

newbie_learn · October 25, 2011, 3:37pm

Thank you. I displayed initial form and used your option number 2. I used array to hold the values. I also used <input type=“hidden” name=“” value=“<?php print $_POST[‘asian’];?>”> (for example) to keep the data the user has selected. It works. Thank you.