question mark in the url

[Anon]

Hi!
I use php to code very simple stuffs. A lot of times I see question marks in the url:

http://www.phpbuilder.com/forum/post.php3?num=1

Why people use the question mark? When should I use and how to do that?
Where can I find a tutorial or something like that where I can find the answer??
Thank you

Felipe Lopes

[brandonschnell]

a question means that anything follows is data for the next page. if you were to call up a php page like post.php3?num=1 then in the script post.php3 you could do "echo $num;" and the number 1 would be sent.

or in another example you could bring up post.php3?x=1&y=2 then in the script "echo $x + $y;" and the result would be three.

[Anon]

http://www.php.net/tut.php

In the "Dealing With Forms" section, change the FORM method to GET. That should give you an better understanding.

HTH
adam

[Anon]

Thank you!
It's really interesting! Where can I find out more about this issue?
Thank you again

Felipe Lopes

[Anon]

So all I have to do to put data into the url is use "GET" instead of "POST"?
Is it the only way to do that?
Thank you

Felipe Lopes

[Anon]

No, you can use post too, it'll still work fine.

Here's an example of a page that uses this:

<?

if ($id == "view"){
echo "You are in view mode";
}
else {

echo "You are not in view mode";

?>

<br>
<form name="example" action="?id=view" method="post">
<input type="submit" name="submit" value="Change to View Mode">
</form>

<?
}
?>

Upload it to your server and check it out!

[Anon]

It's not working for me....I see what should happen though...
It should give the "view" value to $id and, therefore echo "You are in view mode", but when I press "Change to View Mode" a new page comes up saying:

---

Method Not Allowed
The requested method POST is not allowed for the URL /index.html.
Apache/1.3.14 Server at localhost Port 80

---

What's wrong?
Thank you

Felipe Lopes

[Anon]

I got it fixed....I put <? echo "$PHP_SELF"; ?> into the form action before "?id=view". It worked fine...

Felipe Lopes

[Anon]

Actually Felipe, the problem was everytime you use a php script for a page, you need to give that page the extension of .php, NOT .html !!! This is a common mistake with beginners.