calculating radio and checkboxes

vanessa123 · April 7, 2009

Hi, need help

I have 3 radio buttons and six checkboxes - the radio buttons have different dollar values but the checkboxes have the same dollar value.

my first form works great but I can't get the second form to calculate the radio button with the checkboxes...? really need help as the assignment is due in two days and I am getting desperate. Has to be in php tho.

Cheers

First page:

<!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" lang="en" xml:lang="en">
<head> 
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
    <link href="styles.css" rel="stylesheet" type="text/css">
  <title>Outdoor Adventures - Play Set Options</title>
</head>
<body>
  <h1>Outdoor Adventures - Play Set Options</h1>

  <p>
    Welcome to Outdoor Adventures. Complete the form below to calculate the cost of one of our play sets.
  </p>
  <form action="cost.php" method="post">
   	<table  width="750" border="0" cellpadding="0" cellspacing="0"> 
	<table  width="750" border="0" cellpadding="0" cellspacing="0"> 
	  <tr>
		<td width="88">First name: </td>
		<td width="662"><input type="text" id="first_name" name="first_name" size="30" maxlength="20" /></td>
	  </tr>
	  <tr>
		<td>Last name: </td>
		<td><input type="text" id="last_name" name="last_name" size="30" maxlength="20" /></td>
	  </tr>
	  <tr>
		<td>Phone: </td>
		<td><input type="text" id="phone" name="phone" size="10" maxlength="10" /></td>
	  </tr>
</table>
	<p>Base model play set:<br>
	  <input type="radio" id="single" name="base" value="Single"> <label for="single">Single<br />
	  <input type="radio" id="double" name="base" value="Double"> <label for="double">Double</label><br />
	  <input type="radio" id="monkey" name="base" value="Double with monkey bars"> <label for="monkey">Monkey</label><br />
	<p>Optional extra components:<br>
	  <input type="checkbox" id="MetalClimbBar" name="extra[0]" value="Metal climb bar" />
	  		<label for="MetalClimbBar">Metal climb bar</label><br />
	  <input type="checkbox" id="FiremanPole" name="extra[1]" value="Fireman pole" /> 
	  		<label for="FiremanPole">Fireman Pole</label><br />
	  <input type="checkbox" id="See-saw" name="extra[2]" value="See-saw" />
	  		<label for="See-saw">See-saw</label><br />
	  <input type="checkbox" id="Rock-climbingWall" name="extra[3]" value="Rock-climbing wall" /> 
	  		<label for="Rock-climbingWall">Rock-climbing Wall</label><br />
	  <input type="checkbox" id="Trapezeandrings" name="extra[4]" value="Trapeze and rings" /> 
	  		<label for="Trapezeandrings">Trapeze and rings combo</label><br />
	  <input type="checkbox" id="RopeLadder" name="extra[5]" value="Rope ladder" /> 
	  		<label for="RopeLadder">Rope Ladder</label><br />
	  
	</p>
	<p>
	  <input type="submit" value="Submit" > <input type="reset">
	</p>

  </form>
</body>
</html>


Second page:
<?php


// Variables for storing data and calculations
$errors = "";
$count = 0;
$cost = 0;


// Function to display errors
function errorMessage($errors) 			
{
	echo "<p>Your order could not be completed. Please check the errors below:<br />";
	echo "<ul>";
    	echo $errors;   						// Display error message
	echo "</ul>";
    	echo "Click the green \"back\" button to try again.<br />";
   }
  
	// if the form has been posted,analyse it, strip out any leading or trailing spaces:
 if(_POST)
{
	foreach ($_POST as $field_name => $value)
	{
		$value = trim($value); 
		$$field_name = $value; 
	} 
}

$extra_arr = array('Climb bar'=>100, 'Fireman pole'=>100, 'See-saw'=>100, 'Rock-climbing wall'=>100, 'Trapeze and rings'=>100,'Rope ladder'=>100);	

// Testing for input errors and nil entries in the various areas of the form

if($first_name == "" || is_numeric($first_name))
{
	$errors .= "<li>a first name needs to be entered</li><br />";
}
if($last_name == "" || is_numeric($last_name))
{
	$errors .= "<li>a last name needs to be entered</li><br />";
}
if($phone === "" || is_numeric($last_name))
{
	$errors .= "<li>a phone number needs to be entered</li><br />";
}


if($base == "")
{
	$errors .= "<li>a base needs to be selected</li><br />";
}
if($base == "Single" )
{
	$cost = 550;
}
if($base == "Double")
{
	$cost = 600;
}
if($base == "Double with monkey bars")
{
	$cost = 700;
}


  	for($i = 0; $i < 6; $i++)
{
	if($extra_arr[$i])
	{	
		$count = ++;
	}

	 }

// If no errors, display the form data
if($errors == "")
{
echo <<<END
<p>First name:  $first_name</p>
<p>Last name:  $last_name</p>
<p>Phone:  $phone</p>
<p>Base:   $base</p>
    Optional extra components:
<ul>
END;
  for($i = 0; $i < 6; $i++)
  {
	if($extra_arr[$i])
	{
echo <<<END
		<li>$extra_arr[$i]</li>			
END;
   		$cost++;
	 }
  }
echo <<<END
</ul>
    <p>Cost: $$cost</p>
END;
}
else						// If errors, display errors
{
	errorMessage($errors);
}
?>

Yesideez · April 7, 2009

Can you post the HTML (or a link to the page if online) with sample data please?

Bit difficult without it.

Yesideez · April 7, 2009

Erm... can you surround that with CODE tags please? Makes it easier to read and preserves formatting!

vanessa123 · April 7, 2009

I'm not sure what you mean? Do I have to rewrite it?

Yesideez · April 7, 2009

One easier way of displaying data using ECHO is...

     echo "<p>First name:  $first_name</p>
   <p>Last name:  $last_name</p>
   <p>Phone:  $phone</p>
   <p>Base:   $base</p>
    Optional extra components:
   <ul>";

There's no mention of any prices in the HTML (visible to the user) to show them what they're spending.

If I click "Double" it unselectes and goes back to Single being selected - missing </label>

        <input type="radio" id="single" name="base" value="Single"> <label for="single">Single</label><br />
        <input type="radio" id="double" name="base" value="Double"> <label for="double">Double</label><br />
        <input type="radio" id="monkey" name="base" value="Monkey"> <label for="monkey">Monkey</label><br />

I've added it for you.

I've also changed the value of monkey to Monkey - why have a long line of text?

As for the checkboxes I've edited the HTML slightly removing the square brackets:

        <input type="checkbox" id="MetalClimbBar" name="extra0" value="Metal climb bar" />
              <label for="MetalClimbBar">Metal climb bar</label><br />
        <input type="checkbox" id="FiremanPole" name="extra1" value="Fireman pole" />
              <label for="FiremanPole">Fireman Pole</label><br />
        <input type="checkbox" id="See-saw" name="extra2" value="See-saw" />
              <label for="See-saw">See-saw</label><br />
        <input type="checkbox" id="Rock-climbingWall" name="extra3" value="Rock-climbing wall" />
              <label for="Rock-climbingWall">Rock-climbing Wall</label><br />
        <input type="checkbox" id="Trapezeandrings" name="extra4" value="Trapeze and rings" />
              <label for="Trapezeandrings">Trapeze and rings combo</label><br />
        <input type="checkbox" id="RopeLadder" name="extra5" value="Rope ladder" />
              <label for="RopeLadder">Rope Ladder</label><br />

You can then run a for() loop with a switch() statement to check for those ticked:

for ($i=0;$i<6;++$i) {
  switch ($i) {
    case 0:if ($_POST['extra0']) {$total+=100;};break;
    case 1:if ($_POST['extra1']) {$total+=200;};break;
    case 2:if ($_POST['extra2']) {$total+=300;};break;
    case 3:if ($_POST['extra3']) {$total+=400;};break;
    case 4:if ($_POST['extra4']) {$total+=500;};break;
    case 5:if ($_POST['extra5']) {$total+=600;};break;
  }
}

That's presuming $total contains the total so far.

How's that?

Yesideez · April 7, 2009

Also noticed double dollar sign:

         $$field_name = $value;

Should this be:

         $field_name = $value;

vanessa123 · April 7, 2009

Thank you, am going to try all your suggestions...thanks.. was trying to clean up my mess...but your stuff sounds logical. Will let you know how I go.

Cheers.

Yesideez · April 7, 2009

Hope it works out for you

sasa · April 8, 2009

<!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" lang="en" xml:lang="en">
<head> 
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
    <link href="styles.css" rel="stylesheet" type="text/css">
  <title>Outdoor Adventures - Play Set Options</title>
</head>
<body>
  <h1>Outdoor Adventures - Play Set Options</h1>

  <p>
    Welcome to Outdoor Adventures. Complete the form below to calculate the cost of one of our play sets.
  </p>
  <form action="cost.php" method="post">
   	<table  width="750" border="0" cellpadding="0" cellspacing="0"> 
	<table  width="750" border="0" cellpadding="0" cellspacing="0"> 
	  <tr>
		<td width="88">First name: </td>
		<td width="662"><input type="text" id="first_name" name="first_name" size="30" maxlength="20" /></td>
	  </tr>
	  <tr>
		<td>Last name: </td>
		<td><input type="text" id="last_name" name="last_name" size="30" maxlength="20" /></td>
	  </tr>
	  <tr>
		<td>Phone: </td>
		<td><input type="text" id="phone" name="phone" size="10" maxlength="10" /></td>
	  </tr>
</table>
	<p>Base model play set:<br>
	  <input type="radio" id="single" name="base" value="Single"> <label for="single">Single<br />
	  <input type="radio" id="double" name="base" value="Double"> <label for="double">Double</label><br />
	  <input type="radio" id="monkey" name="base" value="Double with monkey bars"> <label for="monkey">Monkey</label><br />
	<p>Optional extra components:<br>
	  <input type="checkbox" id="MetalClimbBar" name="extra[0]" value="Metal climb bar" />
	  		<label for="MetalClimbBar">Metal climb bar</label><br />
	  <input type="checkbox" id="FiremanPole" name="extra[1]" value="Fireman pole" /> 
	  		<label for="FiremanPole">Fireman Pole</label><br />
	  <input type="checkbox" id="See-saw" name="extra[2]" value="See-saw" />
	  		<label for="See-saw">See-saw</label><br />
	  <input type="checkbox" id="Rock-climbingWall" name="extra[3]" value="Rock-climbing wall" /> 
	  		<label for="Rock-climbingWall">Rock-climbing Wall</label><br />
	  <input type="checkbox" id="Trapezeandrings" name="extra[4]" value="Trapeze and rings" /> 
	  		<label for="Trapezeandrings">Trapeze and rings combo</label><br />
	  <input type="checkbox" id="RopeLadder" name="extra[5]" value="Rope ladder" /> 
	  		<label for="RopeLadder">Rope Ladder</label><br />
	  
	</p>
	<p>
	  <input type="submit" value="Submit" > <input type="reset">
	</p>

  </form>
</body>
</html>


Second page:
<?php


// Variables for storing data and calculations
$errors = "";
$count = 0;
$cost = 0;


// Function to display errors
function errorMessage($errors) 			
{
	echo "<p>Your order could not be completed. Please check the errors below:<br />";
	echo "<ul>";
    	echo $errors;   						// Display error message
	echo "</ul>";
    	echo "Click the green \"back\" button to try again.<br />";
   }
  
	// if the form has been posted,analyse it, strip out any leading or trailing spaces:
 if($_POST)//
{
	foreach ($_POST as $field_name => $value)
	{
		$value = is_array($value) ? $value : trim($value); 
		$$field_name = $value; 
	} 
}

$extra_arr = array('Climb bar'=>100, 'Fireman pole'=>100, 'See-saw'=>100, 'Rock-climbing wall'=>100, 'Trapeze and rings'=>100,'Rope ladder'=>100);	

// Testing for input errors and nil entries in the various areas of the form

if($first_name == "" || is_numeric($first_name))
{
	$errors .= "<li>a first name needs to be entered</li><br />";
}
if($last_name == "" || is_numeric($last_name))
{
	$errors .= "<li>a last name needs to be entered</li><br />";
}
if($phone === "" || is_numeric($last_name))
{
	$errors .= "<li>a phone number needs to be entered</li><br />";
}


if($base == "")
{
	$errors .= "<li>a base needs to be selected</li><br />";
}
if($base == "Single" )
{
	$cost = 550;
}
if($base == "Double")
{
	$cost = 600;
}
if($base == "Double with monkey bars")
{
	$cost = 700;
}


/*  	for($i = 0; $i < 6; $i++)
{
	if($extra_arr[$i])
	{	
		$count++;//
	}

	 }
*/
$count = count($extra);
// If no errors, display the form data
if($errors == "")
{
echo <<<END
<p>First name:  $first_name</p>
<p>Last name:  $last_name</p>
<p>Phone:  $phone</p>
<p>Base:   $base</p>
    Optional extra components:
<ul>
END;

foreach ($extra as $name){
echo "<li>$name</li>\n";
$cost += $extra_arr[$name];
}

echo <<<END
</ul>
    <p>Cost: $$cost</p>
END;
}
else						// If errors, display errors
{
	errorMessage($errors);
}
?>

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