Why are there always 2 int in my $_SESSION['basket']

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it doesn't matter if I say:

if (isset($_POST['add_to_cart'])) {
    $_SESSION['basket'] = array();

    $_SESSION['basket'] = array_push($_SESSION['basket'], $row['broodjes_ID']);
}

or

if (isset($_POST['add_to_cart'])) {
    $_SESSION['basket'] = array();

    $_SESSION['basket'] = array_push($_SESSION['basket'], $row['broodjes_ID'], $row['broodnaam']);
}

my $_SESSION['basket']; always returns int 2 for some reason and this causes my cart to have the same item in it twice. hwo do I fix this. and also how do I make my cart remember what my user puts in the cart??

index.php

<!-- session_start();  geeft error a sessin has already started -->
<?php 
//  if(isset($_SESION['basket'])){
//      $_SESSION['basket'] = array();
//      print_r($_SESSION['basket']);
//  }
error_reporting(E_ALL);
ini_set('display_errrors', '1');
?>
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
        <meta name="description" content="" />
        <meta name="author" content="" />
        <title>Shop Homepage - Start Bootstrap Template</title>
        <!-- Favicon-->
        <link rel="icon" type="image/x-icon" href="assets/favicon.ico" />
        <!-- Bootstrap icons-->
        <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.5.0/font/bootstrap-icons.css" rel="stylesheet" />
        <!-- Core theme CSS (includes Bootstrap)-->
        <link href="css/styles.css" rel="stylesheet" />
        <link href="css/stylecart.css" rel="stylesheet" />
        <script src="js/scripts.js" async></script>

    </head>
    <style>
        body {
        font-family: Arial, Helvetica, sans-serif;
        font-size: 20px;
        }

        #myBtn {
        display: none;
        position: fixed;
        bottom: 20px;
        right: 30px;
        z-index: 99;
        font-size: 18px;
        border: none;
        outline: none;
        background-color: black;
        color: white;
        cursor: pointer;
        padding: 25px;
        border-radius: 50px;
        }

        #myBtn:hover {
        background-color: #555;
        }
    </style>
    <body>
        
        <!-- Navigation-->
        <?php include "navbar.php"?>
        <?php if(isset($_SESSION['USER_ID'])){ ?>
        <!-- Header-->
        <header class="bg-dark py-5">
            <div class="container px-4 px-lg-5 my-5">
                <div class="text-center text-white"> <!--Het werkt -->
                    <h1 class="display-4 fw-bolder">Goedemorgen, <?php echo $_SESSION['USERNAME'];?></h1>
                    <p class="lead fw-normal text-white-50 mb-0">Shop in style</p>
                </div>
            </div>
        </header>
        <?php
        } else {
        ?>
                <!-- Header-->
                <header class="bg-dark py-5">
            <div class="container px-4 px-lg-5 my-5">
                <div class="text-center text-white"> <!--het werkt-->
                    <h1 class="display-4 fw-bolder">Goedemorgen, Gast</h1>
                    <p class="lead fw-normal text-white-50 mb-0">Shop in style</p>
                </div>
            </div>
        </header>
        <?php } ?>
        <!--miscchien dit toch in een whileloop gooien dat zal ook de code korter maken-->
        <!-- Section-->
        <button onclick="topFunction()" id="myBtn" title="Go to top">↑</button> 
        <?php 
        include "config.php";
        $sql  = 'SELECT * FROM broodjes';
        $stmt = $conn->prepare($sql); 
        $stmt->execute();
        $result = $stmt->get_result(); // get the mysqli result
        while($row = $result-> fetch_assoc()){
            // $_SESSION['basket'] = array(); 
            //echo $row['broodnaam'];
            echo '        <section class="py-5">
            <div class="container px-4 px-lg-5 mt-5">
                <div class="row gx-4 gx-lg-5 row-cols-2 row-cols-md-3 row-cols-xl-4 justify-content-center">
                    <div class="col mb-5">
                        <div class="card h-100">
                            <!-- Product image dit kan later nog wel-->
                            <div class="fw-image">
                                <img class="card-img-top" src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" alt="..." />
                            </div>
                            <!-- Product details-->
                            <div class="card-body p-4">
                                <div class="text-center">
                                    <div class="test1">
                                    <input type="hidden" name="broodjes_ID" value=', $row['broodjes_ID'] , '/>
                                    </div>
                                    <!-- Product name-->
                                    <div class="test3">
                                        <input type="hidden" name="broodnaam" value=', $row['broodnaam'] , '/>
                                        <h5 class="fw-bolder">'.$row['broodnaam']. '</h5>
                                    </div>
                                    <!-- Product price-->
                                    <div class="test2">
                                        <input type="hidden" name="broodnaam" value=', $row['prijs'] , '/>
                                        <h3> Prijs:  </h3>   <h3 class="fw-price"> €'.$row['prijs']. '</h3><br>
                                    </div>
                                    <!--voorraad--> 
                                    '; if($row['voorraad'] == 0){
                                        echo '
                                        <h3 class="fw-voorraad" style="color: red;"> uitverkocht</h3><br>
                                    '; }else{ 
                                        echo ' 
                                        Voorraad: '.$row['voorraad'].'<br>
                                        </div>
                                        </div>
                                        <!-- Product actions-->
                                        <form action="cart.php?broodjes_ID='. $row['broodjes_ID'].'" method="post" name="broodjes" value"<?php echo htmlentities(serialize($_SESSION["basket"])); ?>
                                            <div class="card-footer p-4 pt-0 border-top-0 bg-transparent">
                                                <div class="text-center"><button class="btn btn-outline-dark mt-auto shop-item-button" type="submit" name="add_to_cart">Add to cart</button></div>
                                            </div>
                                        </form>
                                    '; } 
                        echo '</div>
                    </div>
                </div>
            </div>
        </section>';                           
        if (isset($_POST['add_to_cart'])) {
            $_SESSION['basket'] = array();
            
            $_SESSION['basket'] = array_push($_SESSION['basket'], $row['broodjes_ID']);
        }
        }
        ?>
        
        <!-- Footer-->
        <?php include "footer.php";?>
        <!-- Bootstrap core JS-->
        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
        <!-- Core theme JS-->
        <script src="js/scrolltotop.js"></script>
    </body>
</html>

cart.php

<?php 
session_start();
error_reporting(E_ALL);
ini_set('display_errrors', '1');
// session_destroy();
?>
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
        <meta name="description" content="" />
        <meta name="author" content="" />
        <title>Cart</title>
        <!-- Favicon-->
        <link rel="icon" type="image/x-icon" href="assets/favicon.ico" />
        <!-- Bootstrap icons-->
        <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.5.0/font/bootstrap-icons.css" rel="stylesheet" />
        <!-- Core theme CSS (includes Bootstrap)-->
        <link href="css/styles.css" rel="stylesheet" />
        <link href="css/stylecart.css" rel="stylesheet" />
        <script src="js/scripts.js" async></script>

    </head>
    <style>
    body {
        font-size: 20px;
    }

    </style>
<body>
<a class="back" href="index.php"> class="bi bi-arrow-left-circle-fill bi-5x"></a>
<?php 
include "config.php";
// array_pushed nog niks
    // array_push($_SESSION['basket'], $_GET['broodjes_ID']);
     //s$_SESSION['basket'] = 
     //$_SESSION['basket'] = unserialize($_POST[$_SESSION["basket"]]);
//    session basket word uitgebreid met het getal dat in de url staat
//     }
        ?>
        <div class="text-center" style="font-size: 100px;">🛍</div>
        <h2 class="text-center">Winkelmandje</h2><br>
        <section class="container content-section">
            <!-- <h2 class="section-header">CART</h2> -->
            <div class="cart-row">
                ITEM
                PRICE
                QUANTITY
            </div>  
            <?php 
            
               $broodjes_ID = $_GET['broodjes_ID'];
               var_dump($_SESSION['basket']); 

                //onthouden van vorige get request
                //$count = count($_SESSION['basket']); // count basket puts 3 times the same item in the shopping cart
                if($_SESSION['basket'] > 0){
                    $sum = 0;
                    for($i = 0; $i<$_SESSION['basket']; $i++){
                        //$basket =  $_SESSION['basket'][$i];
                        $sql = "SELECT broodjes_ID, broodnaam, prijs FROM broodjes WHERE broodjes_ID = ?";
                        // uitvoeren, resultaat tonen in tabel.
                        $stmt = $conn->prepare($sql);
                        $stmt->bind_param("i", $broodjes_ID); 
                        $stmt->execute();
                        $result = $stmt->get_result(); // get the mysqli result
                        while($row = $result-> fetch_assoc()){     
                            echo '<div class="cart-items">';
                            echo '<div class="cart-row">';
                            echo '<div class="cart-item cart-column">';
                            echo ''. $row['broodnaam'] . '';
                            echo '</div>';
                            echo ' €'. $row['prijs'] . '';
                            echo '</div>';
                            echo '</div>';
                            break;
                            
                            $sum += $row['prijs']; 
                        }
                        
                    }
                ?>
                    <div class="cart-total">
                        class="cart-total-title">
                         € <?php echo $sum;?>
                    </div>
            <?php

                }else{
                    echo 'mandje is leeg.';

            ?>
                <div class="cart-total">
                    ^__strong class="cart-total-title">Total
                     € 0
                </div>
            <?php 
            }
            ?>



            <div class="text-center">
                <button class="btn btn-outline-primary"  type="button"><a href="bestellen.php">PURCHASE</a></button>
            </div>
        </section>
</body

What I have tried:

I have tried for a few days a lot of different things to get this solved. Like looking what my $_SESSION returns. why it returns this and all that kind of stuff but I just don't understand why it's doing this

Posted 23-Dec-21 1:35am

Rebecca2002

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Comments

Estys 23-Dec-21 9:33am

array_push returns the new number of element in the array, not an array.

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