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Posted by Thad on 04/01/07 17:28
"J.O. Aho" <user@example.net> wrote in message
news:57a576F2ccdnjU1@mid.individual.net...
> Thad wrote:
>
>> Is there not something like
>> javascript in PHP to pull the value of the selected button like
>> $answer=image_choice.value.this ?
>> If it just cannot be done in a session, I will resign to $_request. I
>> have
>> looked at a lot of documentation about $_GET, $_POST and $_REQUEST and
>> just
>> cannot get it working. If I have to post first, my server will not allow
>> this. Can you help me along this way?
>
> I think you missed the whole concept of a session. Even if you use a
> session
> cookie, you can't manipulate session values with javascript, the data that
> is
> stored in the session cookie is a reference number to data that is stored
> on a
> session file (or database) on the server.
>
> Values from a form has to be sent to the server and fetch those values you
> use
> $_GET, $_POST (it's possible to use $_COOKIE if you use javascript to
> rewrite
> the cookie each time a value in the form is changed) or $_REQUEST.
>
> There is two ways to send data to a php script, either you use the GET
> method
> or the POST method, if you are unsure which method has been used you use
> $_REQUEST.
>
>
> ----------------- GET example ------------------
>
> --- page1.php ---
> <a href="page2.php?value=1">Send the value 1 to page2.php</a>
> --- eof ---
>
> --- page2.php ---
> echo $_GET['value'];
> --- eof ---
>
>
> ----------------- POST example ------------------
>
> --- page3.php ---
> <form action="page4.php">
> Value:<input type="text" name="value">
> <input type="submit" value="Submit the value">
> </form>
> --- eof ---
>
> --- page4.php ---
> echo $_POST['value'];
> --- eof ---
>
>
>
> You could replace the page4.php and page2.php with this one:
> --- page5.php ---
> echo $_REQUEST['value'];
> --- eof ---
>
>
> I do hope you see the difference, a general rule is that a form is a
> $_POST, a
> link is a $_GET (and both are subsets of $_REQUEST), if you want to
> transfer
> the sent value to a variable, then you can do
>
> $value=$_REQUEST['value'];
>
> That ain't so difficult.
>
> If you now want to use a session, you need edit the page2.php, page4.php
> and
> page5.php.
>
>
> --- page6.php ---
> session_start();
> echo "Now we will store value=".$_REQUEST['value']." to a session";
> $_SESSION['value']=$_REQUEST['value'];
> --- eof ---
I have gotten things to work. Thanks so much for your help AJO.
Thad
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