Newbie question

[patheticsam]

Hi,

 

I'm new to php and I have a pretty basic question :

 

I have a form that passes about 50 different fields to another page. Once on the page I get the value like this :

$event10 = $_POST['event10']; $event11 = $_POST['event11']; $event12 = $_POST['event12']; $event13 = $_POST['event13']; $event14 = $_POST['event14'];
$event15 = $_POST['event15']; $event16 = $_POST['event16']; $event17 = $_POST['event17']; $event18 = $_POST['event18']; $event19 = $_POST['event19'];
$event20 = $_POST['event20']; $event21 = $_POST['event21']; $event22 = $_POST['event22']; $event23 = $_POST['event23']; $event24 = $_POST['event24'];
$event25 = $_POST['event25']; $event26 = $_POST['event26']; $event27 = $_POST['event27']; $event28 = $_POST['event28']; $event29 = $_POST['event29'];
$event30 = $_POST['event30']; $event31 = $_POST['event31']; $event32 = $_POST['event32']; $event33 = $_POST['event33']; $event34 = $_POST['event34'];
$event35 = $_POST['event35']; $event36 = $_POST['event36']; $event37 = $_POST['event37']; $event38 = $_POST['event38']; $event39 = $_POST['event39'];
$event40 = $_POST['event40']; $event41 = $_POST['event41']; $event42 = $_POST['event42']; $event43 = $_POST['event43']; $event44 = $_POST['event44'];
$event45 = $_POST['event45']; $event46 = $_POST['event46']; $event47 = $_POST['event47']; $event48 = $_POST['event48']; $event49 = $_POST['event49'];
$event50 = $_POST['event50']; $event51 = $_POST['event51']; $event52 = $_POST['event52']; $event53 = $_POST['event53']; $event54 = $_POST['event54'];

Some of these variables values are left empty. Basically what I'm trying to do is to output the number of values that are NOT empty and multiply the amount by 500.

 

If anyone can help me out or point me to a tutorial it would be really appreciated!!

 

Thank you!!

[mac_gyver]

your first step will be to use an array name for the form field - name='event[x]' (where the x is the event number 1,2,3...) this will let you use php's array functions to operate on the data. the submitted values will be an array in $_POST['event'].

 

to filter out the empty values, you would use array_filter(). count() would then given you a count of the remaining elements.

Edited October 9, 2013 by mac_gyver

[sasa]

or

$count = 0;
for($i = 10; $i < 55; $i++){
   if($_POST['event'.$i] != '') $count++;
}
echo $count * 5000;

Edited October 10, 2013 by sasa