Download link over random php image - php

Question

I am displaying a number of random images from a folder, however I'm not very good with PHP (Code sourced from the internet), how would I go about having a "download" link display on top of the image?
Display random image from folder using PHP:
function random_image($directory)
{
$leading = substr($directory, 0, 1);
$trailing = substr($directory, -1, 1);
if($leading == '/')
{
$directory = substr($directory, 1);
}
if($trailing != '/')
{
$directory = $directory . '/';
}
if(empty($directory) or !is_dir($directory))
{
die('Directory: ' . $directory . ' not found.');
}
$files = scandir($directory, 1);
$make_array = array();
foreach($files AS $id => $file)
{
$info = pathinfo($dir . $file);
$image_extensions = array('jpg', 'jpeg', 'gif', 'png', 'ico');
if(!in_array($info['extension'], $image_extensions))
{
unset($file);
}
else
{
$file = str_replace(' ', '%20', $file);
$temp = array($id => $file);
array_push($make_array, $temp);
}
}
if(sizeof($make_array) == 0)
{
die('No images in ' . $directory . ' Directory');
}
$total = count($make_array) - 1;
$random_image = rand(0, $total);
return $directory . $make_array[$random_image][$random_image];
}
Markup:
echo "<img src=" . random_image('css/images/avatars') . " />";
I've tried looking around google for an answer but I can't find anything, any help would be appreciated

Answer 1

You should save the image location in a variable then use it to create a link, plus display it.
$imageUrl = random_image('css/images/avatars');
echo "<a href=" . $imageUrl . ">";
echo "<img src=" . $imageUrl . " />";
echo "</a>";
or if you want to show the text link above, seperately then
$imageUrl = random_image('css/images/avatars');
echo "Click Here<br />";
echo "<img src=" . $imageUrl . " />";

Answer 2

you could use simple javascript to do so, like onclick event for example :
just add this to img tag onclick='window.open('". random_image('css/images/avatars') ."')'
echo "<img onclick='window.open('". random_image('css/images/avatars') ."')' src='" . random_image('css/images/avatars') . "' />";