Multi delete record from database and image file from directory

I new to php, need so help with my script.

In my scrip I can display on page records from database and images. I can do multi delete the checked records from database. I am stack with how to add code to delete the checked images from the directory folder. I know will be best to delete images first and then the record from the directory. Where to stat?

Thanks for help

Image File path sample:

foto/data/20210615-01c2-f9-image.jpg.bak

20210615-01c2 stored as AutoID column

image.jpg stored as Foto column

f9 is name of field form when the record is created. not stored in any table column.

my script

<!-- Item data list -->
<form name="bulk_action_form" action="" method="post" onSubmit="return delete_confirm();"/>
<input type="submit" class="btn btn-danger" name="bulk_delete_submit" value="Delete Selected"/>

    <table class="bordered">
        <thead>
        <tr>
            <th><input type="checkbox" id="select_all" value=""/></th>        
            
            <th>Date</th>
            <th>Item</th>
            <th>ID</th>
            
        </tr>
        </thead>
        <tbody>
        <?php
        // Include the database configuration file
        include_once 'dbConfig.php';
        
        // Get item from the database
        $query = $db->query("SELECT * FROM `datawaznosci` ORDER BY `datawaznosci`.`Data` ASC LIMIT 200;");
        

        // List all records
        if($query->num_rows > 0){
            while($row = $query->fetch_assoc()){
        ?>
        <tr>
            <td><input type="checkbox" name="checked_id[]" class="checkbox" value="<?php echo $row['id']; ?>"/></td>        

            <td><?php echo $row['Date']; ?></td>
                            
            <td><img src="foto/data/<?php echo $row['AutoID']; ?>-f9-<?php echo $row['Foto']; ?>.bak" ></td>
            
            <td><?php echo $row['id']; ?><br><?php echo $row['AutoID']; ?></td>
       
        </tr> 
        <?php } }else{ ?>
            <tr><td colspan="5">No recored</td></tr> 
        <?php } ?>
        </tbody>
    </table>
    <input type="submit" class="btn btn-danger" name="bulk_delete_submit" value="Delete Selected"/>
</form>

The action file

if(isset($_POST['bulk_delete_submit'])){
    
    if(!empty($_POST['checked_id'])){
        
        $idStr = implode(',', $_POST['checked_id']);
        
        
        $delete = $db->query("DELETE FROM datawaznosci WHERE id IN ($idStr)");
        
        
        if($delete){
            $statusMsg = 'Selected items deteled';
        }else{
            $statusMsg = 'Error, try later';
        }
    }else{
        $statusMsg = 'Select minimum one item to delete.';
    }
}

source https://stackoverflow.com/questions/68957974/multi-delete-record-from-database-and-image-file-from-directory