very basic php question

[vampke]

Hi guys,

 

I'm trying to get this php-stuff to work. I actually wrote a working 'script' (yay for me)!

In this script a value is calculated and according to this value, a message $msg is generated.

This part works.

 

Now I need to get this message to display on the next page. I'm sure this is extremely simple, but unfortunately I cannot get it to do this.

After my script the thankyou url is called with these lines:

 

header( "Location: $thankyouurl" );
exit ;

 

How can I get the message $msg to display on the thank you url?

 

Any pointers would be highly appreciated!

 

thanks!

[boo_lolly]

you've got to be more specific. is there a form involved? what calculations are you running, and what is your $msg?

[New Coder]

I might be wrong put I'm sure you could pass the $msg variable through the url.

This is fine as long as it isn't sensitive data.

 

header( "Location: $thankyouurl?msg=$msg" );

exit ;

 

And then use :

 

$msg = $_GET['msg'];

 

on the thank you page.

 

hope this Helps

 

[magnetica]

Can I just say that after you call the:

 

header("Location: $url");

 

AFter this line use the ob_end_flush; in order to free up memory and remove everything from the output buffer

[vampke]

@boo_lolly: yes there is a form involved: the user gives input and based on this the script does some basic math using the number selected from a list and multiply that by another number.

resuls of this are put in the string $msg.

All this works and I can e-mail the string $msg, but I can't seem to get it on the next page.

 

@New Coder: thanks, but this does not seem to work

I'm putting it on my page as

<? $msg = $_GET['msg']; ?>

 

is this correct?

[New Coder]

yes but you will need to then echo it

 

<? $msg = $_GET['msg'];

echo ($msg);

?>

 

would be a way to check if you have passed it

[vampke]

hmmmm no luck

the message in the url also seems to be blank: "thankyou.php?msg="

 

[New Coder]

I would say its working on the pass but $msg is blank.

 

test it by creating a variable on the first page

 

eg $test = "hello";

 

Then

header( "Location: $thankyouurl?test=$test" );

exit ;

 

and finally on the thankyou page

 

<? $test= $_GET['test'];

echo ($test);

?>

[vampke]

this does seem to work, weird...

maybe it is because $msg is too long? it consists of multiple lines, starting with "\n"

 

I actually put it in a mail message a few lines above the header line, and there it works

 

edit: ok, after removing the \n i get the first line of the $msg

any way to get the rest of the message as well?

[New Coder]

Aah yes passing through the url you are probably restricted to 255 charaters

 

I would look into cookies or breaking $msg down into smaller variables and then either still use cookies or post method to the next page

 

Hope this helps

[boo_lolly]

i would not print the $msg in the url. i'd simply use a number identifier, and print the number in the url. for instance, if the calculation concludes one result, $msg = 1, another result, $msg = 2, and so on...

 

then, on the page that is supposed to display the message, do something like this:

<?php
        switch($_GET['msg']){
                case 1:
                        echo "message 1";
                        break;

                case 2:
                        echo "message 2";
                        break;

                case 3:
                        echo "message 3";
                        break;

                default:
                        break;
        }
?>

 

better yet, why do you have a header() function in your script? why don't you just use the form to action="your_page" and run the calculations on that page using the $_POST method, then, you wouldn't have to use header forwarding, you wouldn't have to print anything in the url, and your code would be much cleaner and efficient, and you could still use the switch statement.

[vampke]

i think i'll give your solution with a single php file a try tomorrow, I'll come back here with questions

the first proposal you make is not possible: there are 1000 possible results

 

thanks for helping out

[vampke]

okay people, could someone please point me in the right direction on how to get all the information in 1 file?

Now I have an html file with a form that calls the php script:

<form action="script.php" method="post">

 

How can I make sure that the message is printed in the original html file?

Do I need to put the entire html code between <form> and </form> in the php-script that is called?

How do I return a message after user clicks on 'post' button?

 

I don't quite know where to start, so if someone could point me in the right direction?

 

[Yesideez]

Each parameter (ie. ?msg=) may not contain a value more than 100 characters.

[vampke]

you mean for use in the url?

that is exactly what i am trying to avoid

I actually solved things now, so everything is working, hurrah!

I just used echo $msg, in stead of calling the thankyou url

 

thanks to everybody that tried to help!