Array Manipulation , allowing only numeric entries in Text field

ajd335

Hi all,
I have one webpage in which people can order books online. ( basically text box )
i have one array - book , in which i have stored all different types of books.
Now, I dont want the user to order any garbage ( just numerical entry and not alphabetics ) .
How can I do so ??
I have used following code , but dint work proper

if(isset($_POST['books']) ) {
$input = $_POST['books'];
foreach($input as $input1)
{
    if(!(ereg("^[0-9]+$",$input1))) die ('Please enter numeric values ') ;
}
}

in Above , I want to check for all the entries of books , whether the value entered is numeric or not....
But I guess I am not populating array properly , So how can I do so ??

laserlight

Use [man]ctype_digit/man to check. However, that might not solve your problem, so how does your code not work?

ajd335

laserlight wrote:
Use [man]ctype_digit/man to check. However, that might not solve your problem, so how does your code not work?

Hi ,
Thanks for your help...
It just goes to the die part only even if I provide numeric entries , ( the same happend when i used the above code and also the same with ctype_digit)
The below is full array , user can enter the quantity of the books/enroll...

It's like

      <pre>Array
(
          [customername] =>
          [email] =>
          [books] => Array
              (
                  [book1] => 22
                  [book2] =>
              )
          [enroll] => Array
        (
                    [s1] =>
                     [s2] =>
         )
          [comments] =>

I thing I am somewhere wrong in taking the array...what can be done for that ?
Thanks,

illzz

I'm guessing that your array here is $_POST.

It looks like book2 is blank (not numeric) so it is exiting when it reaches that value. IIRC die stops the file from processing further and displays the exit message, which is why you don't see any other information.

ajd335

illzz wrote:
I'm guessing that your array here is $_POST.

It looks like book2 is blank (not numeric) so it is exiting when it reaches that value. IIRC die stops the file from processing further and displays the exit message, which is why you don't see any other information.

Hi illzz,
I used two dimensional array and ' ereg ' that solved my problem
yeah , you are right about blank book2, I have provided one condition there..
Thanks,