updating images with multi image form - php

Question

I want to be able to update (replace and delete the image)
What I am trying to do is get the Id from the database by attaching it to the name array of the form. I cannot get the record ID from the database.
Form
<div class="container-fluid">
<form action="Multi_imgs/update_image" method="POST" enctype="multipart/form-data">
<div class="row row-sm">
<?php foreach ($model as $item) : ?>
<div class="col-md-3">
<div class="card mb-2" style="width: 18rem;">
<img src="<?= $item->image_name ?>" class="card-img-top" alt="..." style="object-fit:scale-down;height:150px">
<div class="card-body">
<h5 class="card-title">
Delete
</h5>
<p class="card-text">
<div class="form-group">
<label for="" class="form-control-label">
<span class="text-danger">
*
</span>
Change Image
</label>
<div class="">
</div>
<input type="file" name=<?= "multi_img[$item->id]" ?> id="">
</div>
</p>
</div>
</div>
</div>
<?php endforeach ?>
</div>
<div class="col-md-12 col-sm-12 d-flex justify-content-end">
<input class="btn btn-primary btn-md-lg btn-sm-sm" type="submit" value="Update Images">
</div>
</form>
</div>
Controller
public function update_image()
{
$model = new MultiImagesModel();
if ($this->request->getMethod('POST')) :
$images = $this->request->getFileMultiple('multi_img');
foreach ($images as $id => $image) :
$model = new MultiImagesModel();
$result = $model->find($id);
//unlink($result->image_name);
//print_r($image);
echo '<pre>';
$result;
echo '</pre>';
endforeach;
endif;
}