php save array of values

Question

I need to save last 10 viewed products in $_SESSION, so I try to use code below, but in this case $_SESSION['lastViewedProductsList'] keeps only last $product

$title = $node->title;
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; 
$img = $node->uc_product_image['und'][0]['filename'];
$product = array('title' => $title, 'url' => $url, 'img' => $img);

if (!isset($_SESSION['lastViewedProductsList'])) {
  $_SESSION['lastViewedProductsList'] = $product;
} else {
  $_SESSION['lastViewedProductsList'] = $product;
}

How to save last 10 products?

Add to $_SESSION['lastViewedProductsList'][] so you can access $_SESSION['lastViewedProductsList'][0], $_SESSION['lastViewedProductsList'][1],...$_SESSION['lastViewedProductsList'][9] — Thamilhan
– Thamilhan, Commented Jun 2, 2016 at 13:07

Community · Accepted Answer · 2017-05-23 10:34:04Z

1

$title = $node->title;
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; 
$img = $node->uc_product_image['und'][0]['filename'];
$product = array('title' => $title, 'url' => $url, 'img' => $img);

if (!isset($_SESSION['lastViewedProductsList'])) {
    // If the SESSION parameter does not exists, we create it as an array
    $products = array($product);
} else {
    // Else, we add the product in it
    $products = $_SESSION['lastViewedProductsList'];
    $products[] = $product;
    // We check if the array has more than 10 rows
    if(count($products) > 10){
        // If that's the case, we remove the first line in it to keep 10 rows in it
        array_shift($products);
    }
}

$_SESSION['lastViewedProductsList'] = $products;

If you want to check if the product is already in the array, check this solution: PHP: Check if value and key exist in multidimensional array

edited May 23, 2017 at 10:34

CommunityBot

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answered Jun 2, 2016 at 13:23

Nicolas P.

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4 Comments

Heidel Over a year ago

I guess line $_SESSION['lastViewedProductsList'] = $products; can be placed after if...else (I see it two times here). Or not?

Heidel Over a year ago

After some thinking I actually don't understand why $_SESSION['lastViewedProductsList'] = $products; placed after if...else works, because array $products is initialized inside if...else and should be undefinied outside, shouldn't it?

Nicolas P. Over a year ago

Hi Heidel, in any case $products will be defined, in the if or in the else statement. No need to declare it outside.

Heidel Over a year ago

I see! Thanks a lot for help!

Riccardo Bonafede · Accepted Answer · 2016-06-02 13:12:10Z

1

You can convert your array in json format with json_encode() function and save it in your session. Or you can even use php serialize, but i personally prefer json becouse object serialization may lead to some vulnerabilities

answered Jun 2, 2016 at 13:12

Riccardo Bonafede

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Comments

A. Jain · Accepted Answer · 2016-06-02 13:14:50Z

1

Try This:

$title = $node->title;
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; 
$img = $node->uc_product_image['und'][0]['filename'];
$product = array('title' => $title, 'url' => $url, 'img' => $img);

if (!isset($_SESSION['lastViewedProductsList'])) {
$_SESSION['lastViewedProductsList'][] = $product;
} else {
$_SESSION['lastViewedProductsList'][] = $product;
}

answered Jun 2, 2016 at 13:14

A. Jain

1578 bronze badges

3 Comments

Heidel Over a year ago

How can I add check here to save in $_SESSION['lastViewedProductsList'] only unique products and not save the same product a few times?

A. Jain Over a year ago

if (in_array(product['title'],$_SESSION['lastViewedProductsList'][])) { }

A. Jain Over a year ago

check it: stackoverflow.com/questions/9240251/…

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