PHP Redirect advice.

Hi. I'm just learning PHP in preparation for a switch from classic ASP.

One thing I do a lot in ASP is to redirect a user depending on the existance of content in one, or more, form fields submitted from the previous page.

<%
If Request.Form("Name") <> "" Then
Response.Redirect("fail.asp")
End If
%>

How is this done in PHP? Appreciate any advice. Thanks.

Regards
Nath.

You can use the header() function. So a redirect would look like this:

<?php header('Location: fail.php'); ?>

I think the its the same as ASP, but just make sure you don't have any output before you call the header function. So no html or print statements basically.

-justin

Hi Justin.

Thanks for the input. Where though, in the example you've provided, does the PHP script check for the form field input?

In my ASP example, it checks to see if a form field entry, "Name", from the previous page, has a value before redirecting. In your example it looks like you are just redirecting, regardless of whether or not the "Name" field has a value.

Hope you can clarify that. Thanks.
Nath.

Oh, I thought you were asking specifically about the redirect line. The entire code would look like this, assuming you are posting the form.

if(!empty($_POST['Name'])) { 
  header('Location: fail.php');
}

$_POST gives you an array of all the elements in your form. Similarily you can use $_GET if you your form method is GET. By using !empty() that is making sure the variable exists in the $_POST array and that is not "".

-justin