I'm trying to get the concept of the loop down. I'm creating a crude budget tool where I can compare expenses to income.
1. I need to create table rows with a loop
2. need to have a loop check if the value is_numeric (if not echo "value ! num"
2. need to have a loop add the values for each "amount" entered to get a "Total".
I've been able to create the table rows. I haven't figured out how to get the loop to add the money values entered under "amount".
My other problem (of lesser priority) is that the values submitted and displayed change once I submit the form (to itself).
Usually the fields get filled with the first value entered on the first row. i.e. if ammount val 100 entered on first row and val 30 entered on second row, the total is 130 BUT the number displayed are (for each row instance) "100"The numbers are supossed to remain there once the form reloads.
Those are the main tasks. I know that there has to be a way to loop the entire task. I'm just not entirely sure on how to apply the loop tool for all these instances at for each iteration.
Any tips would be greatly appreciated.
Thank you.
DM
--------------
PHP Code:
<?php
//APPLICATION HELPS TO FIGURE OUT EXPENSE VS. INCOME
//THE LOOP TO CREATE THE TABLE ROWS
//TWO COLUMNS ONE IS SOURCE THE OTHER AMOUNT
//THE FORM IS POSTED TO ITSELF
for ($i = 1; $i < 3; $i++)
{
$source_name = 'source'."$i";
$source_value =$HTTP_POST_VARS['source1'];
$amount_name = 'amount'."$i";
$amount_value =$HTTP_POST_VARS['amount1'];
//SECOND TABLE ROW
$amount_value2 = $HTTP_POST_VARS['amount2'];
//ADDING THE ROW VALUES TO GET TOTAL INCOME
$inc_total = ($amount_value + $amount_value2);
//.HTML. CODE FOR TABLE
print '<tr>';
print "<td>";
print "<input type=text name=$source_name value='$source_value'>";
print "</td>";
print "<td>";
print "<input type=text name=$amount_name value='$amount_value'>";
print "</td>";
//CHECKING IF AMOUNT ENTERED IS NUMERIC (ROW 1), IF NOT ERROR MESG
$amount_value =$_GET['amount1'];
if (is_numeric($amount_value))
{
echo " ";
}else
{
print "<td>";
print "<font color=red size=-5>Not numeric!</font>";
print "</td>";
print '</tr>';
}
}
//CHECKING IF AMOUNT ENTERED IS NUMERIC (ROW 2), IF NOT ERROR MESG
$amount_value2 = $_GET['amount2'];
if (is_numeric($amount_value))
{
echo " ";
}else
{
print "<td>";
print "<font color=red size=-5>Not numeric!</font>";
print "</td>";
print '</tr>';
}
?>
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July 5th, 2003, 01:08 PM
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