1. Yol:

$path="../log/";

if(is_dir($path)){
    if($open_path = opendir($path)){             
        while($file = readdir($open_path)){
            echo '<a href="' . $path . "" . $file . '">' . $file . '</a><br>';
        }
        closedir($open_path);
    }
}

2. Yol:

$path = '../log/';
if(is_dir($path)){
    $file_list = glob($path . "*.txt");

    foreach($file_list as $key => $value){
        $filename = str_replace($path, "", $value);
        
        echo $filename;
    }
}