How to display every photo from a database? [closed]

[veks21]

Hello. I want to display all photos from the database. The problem is that it  displays nothing. I added a foreach loop in html but further it not display. I'am beginner, I hope someone help me where I make mistake. I care about separation logic from view.

 

class photo_display
{
    private $database;
    private $userData;


    public function __construct($database)
    {
        $this->database = $database;
    }

    public function display()
    {


        $query = $this->database->connect()->prepare("SELECT photo FROM photo");
        $query->execute();

        if ($query->rowcount()) {
            $row = $query->fetchAll();
        }
        $this->userData = $row;



    }

    public function display_Photos(string $colName)
    {
        return (isset($this->userData[$colName])) ? $this->userData[$colName] : [];

    }
}

<div class='container-fluid bg-dark' id='profil'>
            <div class='row'>
                <div class=" col-12 col-sm-12 col-md-4 col-lg-4 col-xl-4 order-5 order-12 order-6 order-md-4">
                    <div class="row" id="margin">
                        <div class="col-xl-12 d-flex justify-content-center" id="test">
                            <?php foreach ($photo_display->display_Photos('photo') as $value)
                            { ?>
                                <img src ="<?php echo var_dump($value) ?>" />;
                            <?php }
                            ?>

                        </div>
                    </div>
                </div>

 

[Barand]

Where do create the instances of your database and photo_display classes?

How are you storing the images.

<img src  needs to be a filename (or encoded data), not var_dump output.