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Problem with nubers being rounded php mysql

Posted on 2004-08-27
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Last Modified: 2006-11-17
I am useing dollar amounts and my numbers are being rounded off.  How can I make the rate, total, and hardware fields show 2 decimal places?



        if (isset($_POST['submit']))

        {
                  echo "<meta HTTP-EQUIV=refresh content=0;url=invoice.php?view=list>";

            $clientid = ($_POST['clientid']);

            $rate = ($_POST['rate']);

            $hours = ($_POST['hours']);
               
            $hardware = ($_POST['hardware']);

            $hardwaretext = ($_POST['hardwaretext']);

            $comment = ($_POST['comment']);

                  $tax = ($_POST['tax']);

if ($tax = "0"){
$total = (($rate * $hours) + $hardware) * $tax;
 }
else
{$total = (($rate * $hours) + $hardware);}
           
                  mysql_query("INSERT INTO invoice (clientid, rate, hours, hardware, hardwaretext, comment, tax, total) VALUES ('$clientid', '$rate', '$hours', '$hardware', '$hardwaretext', '$comment', '$tax', '$total') ");      
      
            
        }
0
Comment
Question by:livegirllove
  • 6
  • 2
8 Comments
 
LVL 32

Expert Comment

by:ldbkutty
ID: 11918981
>> How can I make the rate, total, and hardware fields show 2 decimal places?
In your DB or in your output Page ?
0
 
LVL 32

Expert Comment

by:ldbkutty
ID: 11918993
Before that, you have some problem your code. Change it like the following(removed unnecessary codes + added reliable code):

if (isset($_POST['submit']))
    {
        echo "<meta HTTP-EQUIV=refresh content=0;url=invoice.php?view=list>";
        $clientid = $_POST['clientid'];
        $rate = $_POST['rate'];
        $hours = $_POST['hours'];
        $hardware = $_POST['hardware'];
        $hardwaretext = $_POST['hardwaretext'];
        $comment = $_POST['comment'];
        $tax = (isset($_POST['tax'])) ? $_POST['tax'] : "";

        // Please check whether empty() OR !empty() function in the following line.
        $total = (empty($tax)) ? (($rate * $hours) + $hardware) :  (($rate * $hours) + $hardware) * $tax;
       
        mysql_query("INSERT INTO invoice (clientid, rate, hours, hardware, hardwaretext, comment, tax, total) VALUES  
        ('$clientid', '$rate', '$hours', '$hardware', '$hardwaretext', '$comment', '$tax', '$total') ");      
  }
0
 
LVL 32

Expert Comment

by:ldbkutty
ID: 11919004
I think you missed out to give the length of the DECIMAL data-type as (10,2).

Just check with PHPMyAdmin ( if you have ) and change the length of the DECIMAL to (10,2)
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LVL 32

Expert Comment

by:ldbkutty
ID: 11919007
or if you dont have any problem, just give us your CREATE TABLE stmt. I'll write an ALTER table command in it.
0
 
LVL 1

Author Comment

by:livegirllove
ID: 11919023
Yup the problem was my fields were 10,0  changed them to 10,2 and it works fine.

just so I understand you. Could you explain the syntax a little bit?

$tax = (isset($_POST['tax'])) ? $_POST['tax'] : "";

        // Please check whether empty() OR !empty() function in the following line.
        $total = (empty($tax)) ? (($rate * $hours) + $hardware) :  (($rate * $hours) + $hardware) * $tax;
0
 
LVL 32

Accepted Solution

by:
ldbkutty earned 2000 total points
ID: 11919041
>> $tax = (isset($_POST['tax'])) ? $_POST['tax'] : "";

isset() checks whether the variable is SET or NOT. The above line is not mandatory. But, it is rather safe coding to have it because you said $tax might be empty.

You have:
---------------------------------------------------------
if ($tax = "0"){
$total = (($rate * $hours) + $hardware) * $tax;
 }
else
{$total = (($rate * $hours) + $hardware);}
-----------------------------------------------------------

It is not correct. First, the if loop should contain == and not = . Second 0 is a number and not a string. you shouldnt close it with double-quotes.

>> $total = (empty($tax)) ? (($rate * $hours) + $hardware) :  (($rate * $hours) + $hardware) * $tax;

The above line is similar to:
--------------------------------

if ( empty ( $tax ) )    // empty($tax) will return TRUE if $tax is 0 or NULL or FALSE or "" (empty).
{
   $total = (($rate * $hours) + $hardware);
}
else
{
   (($rate * $hours) + $hardware) * $tax;
}

Hope you understand.
0
 
LVL 32

Expert Comment

by:ldbkutty
ID: 11919042
Sorry..in my above code else part should be like the following:

else
{
   $total = (($rate * $hours) + $hardware) * $tax;
}
0
 
LVL 1

Author Comment

by:livegirllove
ID: 11919077
thanks fo rthe explaination
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