How to upload several files (photos) to the database at once through the site?

Question

PHP

if (isset($_POST['upload'])) {
        var_dump(file_get_contents($_FILES['img_upload']['tmp_name']));
        if (!empty($_FILES['img_upload']['tmp_name'])) {
            $img = addslashes(file_get_contents($_FILES['img_upload']['tmp_name']));
            $connection1->query("INSERT INTO images (img) VALUES ('$img')");
        }
    }

this code only loads one at a time

<form action="index.php" method="post" enctype="multipart/form-data">
    <input type="file" name="img_upload" multiple="multiple">
    <input type="submit" name="upload" value="Загрузить">
    </form>

you can select more than one in the form, but only one is loaded (the last one selected)

Answer 1

name="img_upload[]"