using forms and PHP

MatttWithOneT

I've been trying and trying and trying... I'm wondering if maybe my scripting is wrong, but right now, all I want to do is use a form/text box to send a variable to another page and then print it. This is the code for the first page:

<html>

<body>

</body>

</html>

and this is the code for the page the action tells it to go to:

<body>

<?php

if("SUBMIT"==$submittry) {
echo ( "You said ".
{$HTTP_GET_VARS["try"]} .
"!" ); }

</body>
</html>

and it will not work. SOMEONE please help me. Thank you in advance.

cgraz

What specifically won't work? Won't output "You said. . ." correctly?

Right now, this looks backwards to me

<?php 

if("SUBMIT"==$submittry) { 
echo ( "You said ". 
{$HTTP_GET_VARS["try"]} . 
"!" ); } 

?>

I think $submittry == 'SUBMIT' is how you should do it (i'm not sure if order actually makes a difference, but I've never seen it done this way).

You don't really need to check for a submit value, since they supposedly will only get to this url through your form. I'd change the code on try.php3 to

<?php 

echo "You said " . $HTTP_GET_VARS["try"] . "!";

// I've never used php3, so I'm not sure how $HTTP_GET_VARS works, but you could also try the following:

echo "You said " . $try . "!";

?>

I think the problem is just in that if statment.

Cgraz

nemonoman

cgraz has correctly identified one problem as the "if" part.

Here are some conditions that will test positive and cause the "then" part of the if clause to execute.

If($submittry) {//then execute}

If ($try) {//then execute }

First off, why test at all? If you're executing the script, it's because someone clicked the form button, yes?

If you need to test -- for example 2 different submit buttons call this script -- simply test for the name, not the value. I think the value of $submittry would be ==its label, the name 'SUBMIT', but you might decide to change this label. If it hasn't been clicked, it won't be an initialized variable.

The other problem is using $HTTP_GET_VARS["try"]

You don't need this at all -- $try will be initialized for you automatically without referencing the array.

In any case, forms "POST" and you'd probably only find the variable if you look in the right spot, i.e. NOT in GET vars.

In 4.x, the manual recommends using $_POST to reference your posted vars rather than $HTTP_POST_VARS.

I personally like $REQUEST, which captures POST vars, GET vars, and $COOKIE too, if I'm not mistaken.