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Almeria Property Place · 10-05-2007, 11:58 AM

hi can anyone point me to a good tutorial on sessions and php as most of the ones i find on the web are about using them with log ins, is it possible to just generate a random session id and then use this with all the pages, rather than setting variables.

confused
Almeria

Matthew King · 10-05-2007, 12:07 PM

Hi Jeremy,

You can do this:

Code:

   <?php
      session_start();
      print(session_id());
   ?>

That gives you the unique session id. If you want to store variables, you call:

Code:

<?php $_SESSION['message'] = 'Hello World'; ?>

which you can then pull out again with:

Code:

<?= $_SESSION['message']; ?>

Just remember to call session_start(); before you start playing with it.

Hope that helps.
Matthew

Almeria Property Place · 10-05-2007, 12:23 PM

ok thanks for that i will have a play around, can i then use this if i want the page user to be able to add a property reference to a type of portfolio that he can view later?

Matthew King · 10-05-2007, 12:58 PM

Yes, you'd want something like this:

To add a property to portfolio:

e.g. /add.php?reference=1

Code:

    <?php
        session_start();
        $_SESSION['portfolio'] .= ',' . $_GET['reference'];
    ?>

Then to get the references back:

e.g. /portfolio.php

Code:

    <?php
        session_start();

        $references = explode(',' $_SESSION['portfolio']);

        foreach($references as $ref) {
            print($ref) . '<br />';
        }
    ?>

I haven't written any PHP properly for ages, so excuse me if there are any syntax errors there. Should give you a good starting point though.

Matthew

Almeria Property Place · 10-05-2007, 01:38 PM

where or how do i get the reference, direct from database?

Matthew King · 10-05-2007, 01:49 PM

When reading from your database, include a link to the 'Add to Portfolio' page passing the property reference by querystring.

Then you'll need to select it from the db when you read the portfolio list, e.g. SELECT * FROM Property WHERE reference = $ref in the for loop.

Almeria Property Place · 10-05-2007, 01:53 PM

does the session start go on every page of my site?

Matthew King · 10-05-2007, 02:16 PM

Every page where you want to access the session.

Almeria Property Place · 10-09-2007, 11:21 AM

Quote:

Originally Posted by Matthew King

Yes, you'd want something like this:

To add a property to portfolio:

e.g. /add.php?reference=1

Code:

    <?php
        session_start();
        $_SESSION['portfolio'] .= ',' . $_GET['reference'];
    ?>

Then to get the references back:

e.g. /portfolio.php

Code:

    <?php
        session_start();

        $references = explode(',' $_SESSION['portfolio']);

        foreach($references as $ref) {
            print($ref) . '<br />';
        }
    ?>

I haven't written any PHP properly for ages, so excuse me if there are any syntax errors there. Should give you a good starting point though.

Matthew

i only seem to get the comma in the quote marks storing in the session, how do i send the actual reference number to the session? i have tried the inserting the url link instead of the comma but it doesnt like it.

Almeria Property Place · 10-09-2007, 01:29 PM

got it to work, just need to find out out to enter each individual reference in a new row on a table instead of a new line.

thanks