将新产品ID添加到会话数组[关闭]

Question

when user click add to cart i need add product id to session of user like this :

if(isset($_POST['link']) AND !empty($_POST['link'])){
$link = sanitizeString($_POST['link']);
if(isset($_SESSION)){ 
$arr = array('bascket'=> 1 , 'id'=> $link);
array_push($_SESSION , $arr);
//$_SESSION[][] = array('bascket'=> 1 , 'id'=> $link);
print_r($_SESSION);

but it not work add new id on previous id and show just 1 row Array ( [bascket] => 2 [0] => Array ( [0] => Array ( [bascket] => 1 [id] => 3 ) ) )

how can add new row in session?

Answer 1

Why not do this instead?

if(isset($_SESSION)){ 
$arr = array('bascket'=> 1 , 'id'=> $link);
$_SESSION = array_merge($_SESSION,$arr);
print_r($_SESSION);
}

In the PHP documentation it says

Note: If you use array_push() to add one element to the array it's better to use $array[]= because in that way there is no overhead of calling a function