User form failing miserably...Involves Basic Math

idontknowphp · September 5, 2011

:-[

Basically this is a pretty straight forward application. The values are all best on a set of conditional statements held in a function and when the user presses submit, it SHOULD calculate the form....However, this is not the case, for some reason it keeps returning 0. I have tried and tried and tried....to no avail. I have attached the files so you can sort through a little easier as there are a good amount of lines.

Thanks!

[attachment deleted by admin]

cunoodle2 · September 5, 2011

I'm not going to download any attachments. Please place your code (and just the area that you think is in issue) in the BODY of the message (NOT as attachments). I'll take a look and let you know what the issue is.

idontknowphp · September 5, 2011

Ok, that is fine....Here is the code:

index.php - HTML for the user form (not styled, just the framework)

<? require('functions.php'); ?>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Untitled Document</title>
</head>

<body>
<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post" name="ezShipForm">
  <!-- Begin Business & Contact Info --->
  <input name="company" type="text" placeholder="Company"><br>
  <input name="address" type="text" placeholder="Address"><br>
  <input name="city" type="text" placeholder="City"><br>
  <select name="state">
    <option value="0">State</option>
    <?php echo generateStateOptions($stateList); ?>
  </select><br>
  <input name="zipcode" type="text" placeholder="Zip Code"><br>
  <input name="contactPhone" type="text" placeholder="Contact Phone"><br>
  <input name="contactFax" type="text" placeholder="Contact Fax"><br>
  <input name="contactName" type="text" placeholder="Contact Name"><br>
  <input name="contactEmail" type="text" placeholder="Contact E-mail"><br>
  <!-- End Business & Contact Info ---> 
  <!-- Begin Calculations --->
  <input name="fuelPrice" type="text" placeholder="Today's Fuel Rate">
  http://www.eia.gov/oog/info/wohdp/diesel.asp<br>
  <select name="trailerType">
    <option value="Flat Bed">Flatbed</option>
    <option value="Step Deck">Step Deck</option>
<option value="Van">Van</option>
    <option value="Refer">Refer</option>
    <option value="RGN/Lo-Boy">RGN/Lo-Boy</option>
  </select>  <br>
  <input name="pickUpDate" type="text" placeholder="MM/DD/YYYY"><br>
  <input name="startingCity" type="text" placeholder="Starting City"><br>
  <select name="startingState">
    <option value="0">State</option>
    <?php echo generateStateOptions($stateList); ?>
  </select><br>
  <input name="destinationCity" type="text" placeholder="Destination City"><br>
  <select name="destinationState">
    <option value="0">State</option>
    <?php echo generateStateOptions($stateList); ?>
  </select><br>
  <input name="loadedMiles" type="text" placeholder="Loaded Miles">http://www.truckmiles.com/<br>
  <select name="loadType">
    <option value="Full">Full</option>
    <option value="Partial">Partial</option>
  </select><br>
  <select name="loadSize">
    <option value="Yes">Oversized</option>
    <option value="No">Not Oversized</option>
  </select><br>
  <input name="loadLength" type="text" placeholder="Load Length">Ex: 120in = 10ft<br>
  <input name="loadWeight" type="text" placeholder="Weight">Ex: 10500lbs = 10.5<br>
  <input name="loadWidth" type="text" placeholder="Load Width">in inches<br>
  <input name="loadHeight" type="text" placeholder="Load Height">in inches<br>
  <select name="tarped">
    <option value="Yes">Yes</option>
    <option value="No">No</option>
  </select><br>
  <select name="twicCardReq">
    <option value="Yes">Yes</option>
    <option value="No">No</option>
  </select><br>
  <input name="permits" type="text" value="0">If yes, How many states?<br>
  <input name="pilotCars" type="text" value="0">If yes, How many?<br>
  <input name="loadDescription" type="text" placeholder="Brief Load or Product Description"><br>
  <input name="comments" type="text" placeholder="Other Comments"><br>
  <input name="total" type="text"><br>
  <input name="submit" type="submit" value="Submit"> 
  <input name="overWidth102" type="hidden">
  <input name="overWidth120" type="hidden">
  <input name="overWidth144" type="hidden">
  <input name="overWidth168" type="hidden">
  <input name="overLength52" type="hidden">
  <input name="overLength56" type="hidden">
  <input name="overLength58" type="hidden">
  <input name="overLength60" type="hidden">
  <input name="overLength62" type="hidden">
  
</form>
<?php 
if (isset($_POST['submit']))
{
	//Call the 'performCalculation' Function To Get Total Coat
	performCalculation();
}
?>
</body>
</html>

functions.php

<?php
function performCalculation()
{
//Declare User Form Variables
$company = $_POST['company']; 
$address = $_POST['address']; 
$city = $_POST['city']; 
$state = $_POST['state']; 
$zipcode = $_POST['zipcode']; 
$contactPhone = $_POST['contactPhone']; 
$contactFax = $_POST['contactFax']; 
$contactName = $_POST['contactName']; 
$contactEmail = $_POST['contactEmail']; 
$fuelPrice = $_POST['fuelPrice']; 
$trailerType = $_POST['trailerType']; 
$pickUpDate = $_POST['pickUpDate']; 
$startingCity = $_POST['startingCity']; 
$startingState = $_POST['startingState']; 
$destinationCity = $_POST['destinationCity']; 
$destinationState = $_POST['destinationState']; 
$loadedMiles = $_POST['loadedMiles']; 
$loadType = $_POST['loadType']; 
$loadSize = $_POST['loadSize']; 
$loadLength = $_POST['loadLength']; 
$loadWeight = $_POST['loadWeight']; 
$loadWidth = $_POST['loadWidth']; 
$loadHeight = $_POST['loadHeight']; 
$tarped = $_POST['tarped']; 
$twicCardReq = $_POST['twicCardReq']; 
$permits = $_POST['permits']; 
$pilotCars = $_POST['pilotCars']; 
$loadDescription = $_POST['loadDescription']; 
$comments = $_POST['comments']; 
$overWidth102 = $_POST['overWidth102']; 
$overWidth120 = $_POST['overWidth120']; 
$overWidth144 = $_POST['overWidth144']; 
$overWidth168 = $_POST['overWidth168']; 
$overLength52 = $_POST['overLength52']; 
$overLength56 = $_POST['overLength56']; 
$overLength58 = $_POST['overLength58']; 
$overLength60 = $_POST['overLength60']; 
$overLength62 = $_POST['overLength62']; 
$total = $_POST['total'];

//Declare Calculation Variables
$mainRate = ($fuelPrice * 0.166 + 1.06) * 1.25;
$mileRate = $loadedMiles * $mainRate;
$permitRate = $permits * 50;
$pilotCarRate = ($pilotCars * 1.25 * $loadedMiles);
$flatBedRate = $subTotal;
$overSizeRate = $overWidth102 + $overWidth120 + $overWidth144 + 
				$overWidth168 + $overLength52 + $overLength56 + 
				$overLength58 + $overLength60 + $overLength62;


//Surcharge Calculation
if ($loadedMiles < 500) { 
	$surcharge = (500 - $loadedMiles) * .25 * $mainRate;
}

//Load Rate Calculation
if ($loadLength > $loadWeight) {	
	$loadRate = $loadLength * $loadedMiles * ($mainRate / 34);
} else {
	$loadRate = $loadWeight * $loadedMiles * ($mainRate / 34);
}

//Tarped Rate Calculation
if ($tarped == "Yes") {
	$tarpRate = 100;
} else {
	$tarpRate = 0;
}

//Sub Total Calculation
if ($loadSize == "Full") {
	$subTotal = $loadedmiles + $surcharge + $tarpRate + $permitRate + $pilotCarRate; 
} else {
	$subTotal = $surcharge + $loadRate + $tarpRate + $permitRate;
}

//Step Deck Rate Calculation
if ($trailerType == "Step Deck") {
	$trailerRate = $subTotal * .02;	
} 

//Van Rate Calculation
if ($trailerType == "Van") {
	$trailerRate = $subTotal * .02;	
}

//Refer Rate Calculation
if ($trailerType == "Refer") {
	$trailerRate = $subTotal * .04;	
}

//RGN/Lo-Boy Rate Calculation
if ($trailerType == "RGN/Lo-Boy") {
	$trailerRate = $subTotal * .10;	
}

//Over Width Rate Calculations
if ($loadWidth > 102) {
	$overWidthRate = $loadedMiles * .2;
}
if ($loadWidth > 120) {
	$overWidthRate = $loadedMiles * .1;
}
if ($loadWidth > 144) {
	$overWidthRate = $loadedMiles * .1;
}
if ($loadWidth > 168) {
	$overWidthRate = $loadedMiles * .1;
}

//Over Length Rate Calculations
if ($loadLength > 52) {
	$overWidthRate = $loadedMiles * .14;
}
if ($loadLength > 56) {
	$overWidthRate = $loadedMiles * .07;
}
if ($loadLength > 58) {
	$overWidthRate = $loadedMiles * .07;
}
if ($loadLength > 60) {
	$overWidthRate = $loadedMiles * .07;
}
if ($loadLength > 62) {
	$overWidthRate = $loadedMiles * .07;
}

//	Total Rate Calculation
if ($loadedMiles !== 0) {
	$total = $trailerRate + $overSizeRate;
	echo $total;
} else {
	$total = 0;
}


}



//Generate List of States 
$stateList = array ('alabama'=>"AL",
'Alaska'=>"AK",
'Arizona'=>"AZ",
'Arkansas'=>"AR",
'California'=>"CA",
'Colorado'=>"CO",
'Connecticut'=>"CT",
'Delaware'=>"DE",
'District Of Columbia'=>"DC",
'Florida'=>"FL",
'Georgia'=>"GA",
'Hawaii'=>"HI",
'Idaho'=>"ID",
'Illinois'=>"IL",
'Indiana'=>"IN",
'Iowa'=>"IA",
'Kansas'=>"KS",
'Kentucky'=>"KY",
'Louisiana'=>"LA",
'Maine'=>"ME",
'Maryland'=>"MD",
'Massachusetts'=>"MA",
'Michigan'=>"MI",
'Minnesota'=>"MN",
'Mississippi'=>"MS",
'Missouri'=>"MO",
'Montana'=>"MT",
'Nebraska'=>"NE",
'Nevada'=>"NV",
'New Hampshire'=>"NH",
'New Jersey'=>"NJ",
'New Mexico'=>"NM",
'New York'=>"NY",
'North Carolina'=>"NC",
'North Dakota'=>"ND",
'Ohio'=>"OH",
'Oklahoma'=>"OK",
'Oregon'=>"OR",
'Pennsylvania'=>"PA",
'Rhode Island'=>"RI",
'South Carolina'=>"SC",
'South Dakota'=>"SD",
'Tennessee'=>"TN",
'Texas'=>"TX",
'Utah'=>"UT",
'Vermont'=>"VT",
'Virginia'=>"VA",
'Washington'=>"WA",
'West Virginia'=>"WV",
'Wisconsin'=>"WI",
'Wyoming'=>"WY");

//Generate State Options for User Forms
function generateStateOptions($array)
{
	$string = '';
	foreach($array as $k => $v)
{
	$string .= '<option value="'.$k.'"'.$s.'>'.$v.'</option>'."\n";
}
	return $string;
}


//End of file
?>

KevinM1 · September 6, 2011

It's returning 0 because you're not actually returning any value from your performCalculation function. Functions have their own, unique scope - what happens within them won't be 'seen' by the rest of the script unless you return a value from the function, and assign that return value to a variable in the parent scope, like so:

function performCalculation()
{
   // bunch of code

   return $total;
}

// main script

$myTotal = performCalculation();

idontknowphp · September 6, 2011

I feel so dumb right now...I have only minimal knowledge of PHP, i am still trying to learn on my own thank you so much man, I should have known.

idontknowphp · September 6, 2011

Though that made sense, I am a little confused in how i will make it all work together as a whole and how to properly call the function, can you either give me a few more hints or point me toward some literature so i can figure this out?

Pikachu2000 · September 6, 2011

With the exception of the superglobals ($_GET, $_POST, $_COOKIE, $_SERVER, etc.), you would need to pass the values of the variables to the function for them to be available for use within the function.

$var_one = 10;
$var_two = 20;

// wrong way
function MULTIPLY() {
$result = ($var_one * $var_two );
return $result;
}
echo MULTIPLY();  // Produces 'Undefined Variable' notices. Variable values are not available within the function.

// right way
function MULTIPLY_PROPERLY( $first_argument, $second_argument ) {
$result = ( $first_argument * $second_argument );
return $result;
}
echo MULTIPLY_PROPERLY( $var_one, $var_two ); // Returns 200 because now the values of the variables are passed to the function as arguments

idontknowphp · September 6, 2011

Gotcha. Thanks alot man, well explained.

idontknowphp · September 6, 2011

Well, though you explained it nicely, I am having a lot of problems....The main one being I am trying something that is quite difficult for my skill level. I just don;t understand how to make it all work together in my application....I have tried everything and I think all i have done is ruin the code.

KevinM1 · September 7, 2011

So, what are you asking for, specifically? We can't help unless we know:

What you expect your code to do.

What's actually happening (including errors, warnings, notices, and any unexpected output).

What your current code is.

idontknowphp · September 7, 2011

I reverted back to the original code....for starters.

Well, this is based off of an excel file that I am trying to convert over to a php application...

I attached it in a zip so you can see it working...

That excel file will answer all the questions....I already converted all of the formulas into PHP conditionals, I just don;t know how to make the form functional...

Again, once you see the form in action it will make plenty of sense

Thanks again!

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User form failing miserably...Involves Basic Math

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