<? $line = '';
                $files = scan_dir(__DIR__ . "/im/", [".", ".."]); // функция scan_dir в init.php
                foreach($files as $i=>$f){
                    $dir = $f;
                    $line .= '<a class="slider-doc" href="/clinic/diploma/im/'.$f.'"><img class="lazyload" data-src="/clinic/diploma/im/'.$f.'" style="width:200px; height:320px; object-fit:cover"/></a>';
                }
                echo $line;
                ?>