How to push multiple values to a session array

Question

I have a page which sets url parameters. I want to store them in a session so that they are always in the shopping cart but the session gets overwritten and there is always only one item in the cart.

<?php
// Start the session - session was set in book details and/or library search page
session_start();

if (isset($_GET['title']) && $_GET['title'] !== ""){
    $_SESSION['name'] = array();
    $title = $_GET['title'];
    array_push($_SESSION['name'],$title);

}

Retrieving the session details

<?php 


foreach ($_SESSION['name'] as $key => $val) {
   echo $val;
}

Doesn't this $_SESSION['name'] = array(); create an empty array every time it's executed? — DinoCoderSaurus
– DinoCoderSaurus, Commented Mar 17, 2020 at 18:33
I don't think so. I've tried it inside and outside of the if statement — user11948517
– user11948517, Commented Mar 17, 2020 at 18:42

LewBlu · Accepted Answer · 2020-03-18 12:59:36Z

2

The issue you are having is that it is re-declaring $_SESSION['name'] as a new array every time this code is run.

I suggest using something along the lines of:

<?php
    session_start();

    if(isset($_GET['title']) && $_GET['title'] !== ""){
        if(!isset($_SESSION['name']) && !is_array($_SESSION['name'])){
            $_SESSION['name'] = array();
        }

        array_push($_SESSION['name'], $_GET['title']);
    }
?>

This does your previous check of seeing if $_GET['title'] is set, but then does another check to ensure if $_SESSION['name'] exists and is an array. If it's not an array it declares it. The last thing it does is add your value to the array.

edited Mar 18, 2020 at 12:59

answered Mar 17, 2020 at 19:07

LewBlu

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5 Comments

user11948517 Over a year ago

Not working - Thanks very much. I see the logic in this - only if the session name hasn't been set an the session name is not a array will the array be set to empty however it's not working on my site. I get a 500 error

LewBlu Over a year ago

Sorry I missed a ) please try it again

user11948517 Over a year ago

Thank you. I don't know if it's my other code messing it up but it's adding the same item into the session twice now and still overwriting when I add another item.

LewBlu Over a year ago

Do you have other code that works with $_SESSION[‘name’]?

user11948517 Over a year ago

Thank you so much! I changed the session name and it's now working.

pradip.parkar · Accepted Answer · 2020-03-17 19:11:25Z

0

push all value to an array(make it associative array) using array push method after that assign that array in a session

answered Mar 17, 2020 at 19:11

pradip.parkar

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Comments

Aleksi Virtanen · Accepted Answer · 2020-03-17 18:42:16Z

-1

$ _SESSION is a superglobal array. Save the value in this field as follows:

 if (isset($_GET['title']) && $_GET['title'] !== ""){

$title = $_GET['title'];
$_SESSION['name'] = $title;

 }

answered Mar 17, 2020 at 18:42

Aleksi Virtanen

215 bronze badges

1 Comment

DinoCoderSaurus Over a year ago

That's going to end up the same way only one element, the "current" title.

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