PHP Calculation scripting question

[medprogress]

Hi,

 

We have a script that does simple mathematical calculations (addition) which we use to provide our clients with an instant quote for my services.  I am trying to expand that script to do an additional task -- (A+B+C) x D . Our current script only does (A+B+C).  I can't get it to work, here is how it looks:

 

Link to the page: http://medprogress.net/mail/mail_customize.php  (note: website is still under heavy constructions)

 

The form aspect in question is where customers input "Number of Mail pieces" and I would like that to be the "D" in my (A+B+C) x D equation. 

 

PHP calculations script:

 

// TURN ON ERROR PRINTING IF NEEDED

 

ini_set ('display_errors', 1);

error_reporting (E_ALL);

 

// SET VARIABLES FOR QUOTE NUMBER GENERATION

 

$time = time();

$qn = rand(1, 99);

$quote_num = $time . ' ' . $qn;

 

// CALCULATE PACKAGE PRICE AND SELECTION

 

If ( !empty($package) ) {

  switch ($package)  {

    case "Internal":

      $package_price = 0;

      break;

    case "External":

      $package_price = 0;

      break;

  }

} Else {

  $package      = "";

  $package_price = 0;

}

 

// CALCULATE ADD-ONS

 

If ( !empty($addon1) ) {

  $addon1_price = 0.14;

} Else {

  $addon1_price = 0;

  $addon1 = "";

}

If ( !empty($addon2) ) {

  $addon2_price = 0.10;

} Else {

  $addon2_price = 0;

  $addon2 = ""; 

}

If ( !empty($addon3) ) {

  $addon3_price = 0.13;

} Else {

  $addon3_price = 0;

  $addon3 = "";

}

If ( !empty($addon4) ) {

  $addon4_price = .30;

} Else {

  $addon4_price = 0;

  $addon4 = ""; 

}

 

// CALCULATE MAINTENANCE COSTS

 

If ( !empty($maintenance) ) {

  switch ($maintenance)  {

    case "Postcard":

      $maintenance_price = 1.00;

      break;

    case "Newsletter":

      $maintenance_price = 1.10;

      break;

  }

} Else {

  $maintenance      = "";

  $maintenance_price = 0;

}

 

$amount = $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price * 10000; (This is were i'm stuck)

 

$total = $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price;

 

If ($total > 0) {

  $select = "yes";

} Else {

  $select = "no";

}

 

$downpayment = $total / 2;

$total      = number_format ($total, 2);

$downpayment = number_format ($downpayment, 2);

 

$eitems = "";

$items = "";

 

 

 

[teng84]

try adding a () ex.

 

$amount =( $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price )* 10000;

so after adding all the numbers it will them multiply to a given number

all the operation inside the () will be the first to be executed 

 

 

[medprogress]

Thanks for the reply

 

Ive added () and it does not affect the result. 

 

Just to expand on my question -- I want the number that is put into form field "Number of Mail Pieces" to be multiplied by [  ( $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price )  ].  Hope that clarifies it a bit more. 

[teng84]

$amount =( $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price )* 10000;

i still dont fully understand im basing my answer on that code

 

heres what your code does.

add all this $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price  then multiply by 1000....

 

is that right?

[medprogress]

Close, but not the multiplication part.  I don't want (a+b+c) be to multiply by 1000, i want the (a+b+c) be multiplied by the number a customer inputs into the form.  So if a customer puts in "500", that is the number i want (a+b+c) be multiplied by.

[KrisNz]

How are you retrieving said number? I don't see any reference to $_POST

[teng84]

are asking if how to use do that so the user can input numbers?

[medprogress]

Thats exactly it KrisNz, I don't have a reference and I would like help with that.

 

teng84, essentially yes, I want them to put in a number they desire.  And on the PHP script, I want the number they put in to be the multiplier. 

 

[teng84]

<a href="http://w3schools.com/php/php_post.asp">read this is what you need to know </a>

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  <meta http-equiv="content-type" content="text/html; charset=windows-1250">
  <meta name="generator" content="PSPad editor, www.pspad.com">
  <title></title>
  </head>
  <body>
<form action=" " method="post">
Enter price: <input type="text" name="price" />
<input type="submit" />
</form>

  </body>
</html>
<?php
if(isset($_POST['price'])){
  if(is_numeric(_POST['price'])){
  // TURN ON ERROR PRINTING IF NEEDED

ini_set ('display_errors', 1);
error_reporting (E_ALL);

// SET VARIABLES FOR QUOTE NUMBER GENERATION

$time = time();
$qn = rand(1, 99);
$quote_num = $time . ' ' . $qn;

// CALCULATE PACKAGE PRICE AND SELECTION

If ( !empty($package) ) {
  switch ($package)   {
    case "Internal":
      $package_price = 0;
      break;
    case "External":
      $package_price = 0;
      break;
  }
} Else {
  $package       = "";
  $package_price = 0;
}

// CALCULATE ADD-ONS

If ( !empty($addon1) ) {
  $addon1_price = 0.14;
} Else {
  $addon1_price = 0;
  $addon1 = "";
}
If ( !empty($addon2) ) {
  $addon2_price = 0.10;
} Else {
  $addon2_price = 0;
  $addon2 = ""; 
}
If ( !empty($addon3) ) {
  $addon3_price = 0.13;
} Else {
  $addon3_price = 0;
  $addon3 = "";
}
If ( !empty($addon4) ) {
  $addon4_price = .30;
} Else {
  $addon4_price = 0;
  $addon4 = ""; 
}

// CALCULATE MAINTENANCE COSTS

If ( !empty($maintenance) ) {
  switch ($maintenance)   {
    case "Postcard":
      $maintenance_price = 1.00;
      break;
    case "Newsletter":
      $maintenance_price = 1.10;
      break;
  }
} Else {
  $maintenance       = "";
  $maintenance_price = 0;
}

$amount = $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price * 10000; (This is were i'm stuck)

$total = $package_price + $maintenance_price + $addon1_price + $addon2_price + $addon3_price + $addon4_price;

If ($total > 0) {
  $select = "yes";
} Else {
  $select = "no";
}

$downpayment = $total / 2;
$total       = number_format ($total, 2);
$downpayment = number_format ($downpayment, 2);

$eitems = "";
$items = "";
  
  }else{
    echo 'invalid input';
  }

}

?>

note not tested i dont have php in my machine now i just type that in note pad