How to get random image from directory using PHP

Question

I have one directory called images/tips.

Now in that directory I have many images which can change.

I want the PHP script to read the directory, to find the

Answer 1

Load folder with images:

$folder = opendir(images/tips/);

Build table out of files/images from directory:

$i = 0;
while(false !=($file = readdir($folder))){
if($file != "." && $file != ".."){
    $images[$i]= $file;
    $i++;
    }
}

Pick random:

$random_img=rand(0,count($images)-1);

Show on page:

echo '<img src="images/tips'.$images[$random_img].'" alt="" />';

Hope it helps. Of course enclose it in <?php ?>.

Answer 2

$images = glob('images/tips/*');
return $images[rand(0, count($images) - 1)];

However, this doesn't ensure that the same image isn't picked twice consecutively.

Answer 3

$folder = "images";
$results_img_arr = array();
if (is_dir($folder))
{
        if ($handle = opendir($folder))
        {
                while(($file = readdir($handle)) !== FALSE)
                {
                    if(!in_array($file,array(".","..")))
                        $results_img_arr[] = $folder."/".$file;
               }
         closedir($handle);
        }
}
$ran_img_key  = array_rand($results_img_arr);

$img_path = $results_img_arr[$ran_img_key];

Answer 4

function get_rand_img($dir)
{
    $arr = array();
    $list = scandir($dir);
    foreach($list as $file)
    {
        if(!isset($img))
        {
            $img = '';
        }
        if(is_file($dir . '/' . $file))
        {
            $ext = end(explode('.', $file));
            if($ext == 'gif' || $ext == 'jpeg' || $ext == 'jpg' || $ext == 'png' || $ext == 'GIF' || $ext == 'JPEG' || $ext == 'JPG' || $ext == 'PNG')
            {
                array_push($arr, $file);
                $img = $file;
            }
        }
    }
    if($img != '')
    {
        $img = array_rand($arr);
        $img = $arr[$img];
    }
    $img = str_replace("'", "\'", $img);
    $img = str_replace(" ", "%20", $img);
    return $img;
}


echo get_rand_img('images');

replace 'images' with your folder.