Question

I have a php code which uses every image in a folder and echos the url on my page.

what i need help with is making the php code randomize the list of urls each time the page is loaded.

The code that i have is:

<?php 
 if ($handle = opendir('images')) {
   while (false !== ($file = readdir($handle)))
      {
          if ($file != "." && $file != "..")
      {
            $thelist .= '<div data-delay="5"><img src="images/'.$file.'"></div>';
          }
       }
  closedir($handle);
  }
?>
<?=$thelist?>

many thanks

Answer 1

Easiest solution would be to put all filenames into an array and then use shuffle() to mix it up. Then you can iterate over the array and output the images. It should look something like this:

<?php 
 $thelist = "";
 if ($handle = opendir('images')) {
   $images = array();
   while (false !== ($file = readdir($handle))) {
      if ($file != "." && $file != "..") {
            array_push($images, 'images/'.$file);
      }
   }
   closedir($handle);
   shuffle($images);
   foreach ($images as $image) {
      $thelist .= '<div data-delay="5"><img src="'.$image.'"></div>';
   }
   echo $thelist;
 }
?>

By using glob() instead of opendir() you could shorten the code significantly, as glob() returns an array and then you only would need to shuffle that one.