php_self

[Anon]

Hi,

This has been a bit of a brain teaser for me...

Does anyone have any experience with using PHP_SELF with form validation? I.e. keep displaying the same page until an input field is filled in, then display another page with a form in it.

I can get around this by calling a new php program with the error traps in it but I thought there may be a more elegant way to code something like this using just one program.

My way means, in the event of errors, they have to press the back button which I'd like to avoid.

Thanks

Jen

[Anon]

You could do the following which will cause the file to reload, show the errors at the top of the page and display the form again:

if($transfer==1) {
if (empty($FirstName)) {
$fnr++;
$fault[$fnr]="<B>First Name is missing.</B> Please enter your First Name.";
}

if (empty($LastName)) {
$fnr++;
$fault[$fnr]="<B>Last Name is missing.</B> Please enter your Last Name.";
}

if($fnr > 0) { 
include("samefilename.php");
exit;
}

}

echo "<form action='$PHP_SELF' method='post'>
<INPUT NAME=FirstName TYPE=text VALUE=\"\" SIZE=22>
<INPUT NAME=LastName TYPE=text VALUE=\"\" SIZE=22>
<INPUT TYPE="hidden" NAME="transfer" VALUE="1">
<INPUT TYPE='submit' VALUE='submit' NAME='submit'>";

hope this helps,
Peter

[Anon]

It does help thanks - I hadn't really thought of using an include(). It's a very good idea.

I ran your code but it seems to loop and doesn't display the error messages - should there be an echo on the $fault[] var somewhere or am I missing something?

Thanks for this Peter - it's given me something to work on - I'd thought this wasn't possible.

Jen