<?php
     $files = glob("photos/2018-02-htamane/*.*");
     for ($i=0; $i<count($files); $i++)
      {
        $image = $files[$i];
        $supported_file = array(
                'gif',
                'jpg',
                'jpeg',
                'png'
         );

         $ext = strtolower(pathinfo($image, PATHINFO_EXTENSION));
         if (in_array($ext, $supported_file)) {
            echo basename($image)."<br />"; // show only image name if you want to show full path then use this code // echo $image."<br />";
             echo '<img src="'.$image .'" alt="Random image" />'."<br /><br />";
            } else {
                continue;
            }
          }
       ?>

<?php
$array = glob('photos/2018-02-htamane/*');
$i = 1;
foreach($array as $image) {
    ?>
    <input type="radio" name="slide" id="image<?php echo $i ?>" <?php if($i == 1){ ?> checked <?php } ?>/>
    <label for="image<?php echo $i ?>">
        <img src="http://www.gbamedical.com/<?php echo $image ?>"/>
    </label>
    <img src="http://www.gbamedical.com/<?php echo $image ?>"/>
    <?php
    $i++;
}
?>