random_repeater.php

<?php
 
$rows = get_field('slider_image' );
$sub_field = has_sub_field('slider_image');
$rand_row = $rows[ array_rand( $rows ) ];
$logo_colour = get_sub_field('logo_colour');
$caption = get_sub_field('the_caption');
$template_directory = bloginfo('template_directory');

if($rows) // if slider_image exits
	{
      echo '<ul class="invisible">';
		$counter=0;
		while($sub_field) // enables us to use get_sub_field
		    {
		    	if($counter<20){
		    		$counter++;
		    	}
		    	
		    	$rows = $rand_row; // random order of rows

				foreach ($rows as $row) {

					echo '<li>' . $caption . '</li>'; // displays caption

					if (($logo_colour) == "White") { // displays white logo if selected, else grey

					echo '<li><img src="' . $template_directory . '/logo_white.png" /></li>';

					} else {
						
					echo '<li><img src="' . $template_directory . '/logo_grey.png" /></li>';
                    }

				    }
		    }

				} 
	      	        
	   echo '</ul>';
	}
             
?>