Question

I have this code which works well:

function random_pic($dir = 'img')
{
    $files = glob($dir . '/*.png');
    $file = array_rand($files);             
}

It grabs a random image from a directory. I have this in later:

<img src="<?php echo random_pic(); ?>"/>
<img src="<?php echo random_pic(); ?>"/>

Any way I can make it so it they both don’t display the same picture?

Answer 1

Try this:

$indexes=array_rand($files,2);
$file1=$files[$indexes[0]];
$file2=$files[$indexes[1]];

array_rand can retrieve more then one key, just specify 2 as second parameter. In this case it returns am array.

function random_pics($dir = 'img',$howMany=2) {
    $files = glob($dir . '/*.png');
    if($howMany==0) $howMany=count($files); // make 0 mean all files
    $indexes = array_rand($files,$howMany);
    $out=array();
    if(!is_array($indexes)) $indexes=array($indexes); // cover howMany==1
    foreach($indexes as $index) {
        $out[]=$files[$index];
    }
    return $out;
}

$theFiles=random_pics();


<?php echo $theFiles[0]; ?>
<?php echo $theFiles[1]; ?>