Store mutiple values in Session PHP

Question

** UPDATE ** The code is working now. But Now I would like to have a div display the sessions saved. This div is on the same page as the items and is called items I tried using a refresh script. But this doesn't work.

Is this posible via jQuery or should I use AJAX (I'm not really "into" Ajax yet)...

Owke, lets see if I can explain this the best I can... I'm using Wordpress for a site I'm making now I would like to store the "liked" items a custom clicks.

So what I did was open a session in my header

<?php
    session_start();
?>

Then on the page that needs to store the "like" I have the following code:

<?php
    // Set session variables
    $_SESSION["item"] = get_the_title();
?>

And where I would like to echo it I placed this code:

<?php
    if(isset($_SESSION['item'])){
    echo $_SESSION['item'];
    };
?>

This all works like it should, BUT there are multiple items a custom could like on one page. AND I would like to store all of them in my session. But it only stores 1 session at a time.

Do I need to work with numbers of prefixes, like item-x and item-y?

I found this bit of code: link

But because I'm using Wordpress and I just want the title I cant replace $apples, $oranges and $pears with your product ids. Because for me its just

<?php the_title(); ?>

So this, for me, won't work:

<?php
    // Set session variables
    $_SESSION["boot"] = array(); 
    $_SESSION["boot"][] = the_title();
?>

Every time... how to get this to work?

ʰᵈˑ · Accepted Answer · 2016-07-19 14:09:02Z

1

You are overwriting your item session every time. You need to make this an array.

$_SESSION["item"][] = get_the_title();

Now to echo them, you want to get rid of duplicates, so use array_unique()

if(isset($_SESSION['item'])){
    echo implode("<br />", array_unique($_SESSION['item']));
}

POC: https://repl.it/Cd7l

answered Jul 19, 2016 at 14:09

ʰᵈˑ

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2 Comments

Steggie Over a year ago

Thanks for the code! It works like a charm! The only thing is... It shows all the Items and not the one I marked as "like".

Steggie Over a year ago

Do I need to destroy the session first? Using <?php // remove all session variables session_unset(); // destroy the session session_destroy(); ?>

Mike Robinson · Accepted Answer · 2016-07-19 14:18:51Z

1

To elaborate slightly on what was just said: $_SESSION[] is an array which, like any other PHP array, stores arbitrary values under one or more "keys," such as "item".

Like any other PHP array, each value can be a single scalar, such as a book-title string or a single number, or it can be, itself, an array. (This is similar in concept to "a two-dimensional array.") Each of those array-keys could, in turn, lead to any other sort of information you wish to store: PHP data-structures can be arbitrarily deep, and PHP will store it all in your "session."

Now, if it were me, I would probably eliminate duplicates when I stored the values, so that I could be sure that the stored session information didn't contain duplicates at all. Thus, I wouldn't have to do anything special when I echoed them. Something like this:

$_SESSION["item"] = array_unique($_SESSION["item"]);

... exactly as I might do with any other PHP array.

answered Jul 19, 2016 at 14:18

Mike Robinson

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1 Comment

Steggie Over a year ago

Thanks for the elaboration!

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