php - Limiting Results from an Array of values

Question

I am using advanced custom fields in Wordpress. Without going into the details of how it works, I have a "repeater field" which lets the users add as many images to an aera of the backend as they please. To show these images, I use the following code (inside wordpress loop)

<?php if(get_field('slider_images')): ?>
<?php while(the_repeater_field('slider_images')): ?>
     <?php 
     $attachment_id = get_sub_field('work_slider_image'); 
     $size = "homepage";  
     $image = wp_get_attachment_image_src( $attachment_id, $size ); 
     echo $image[0]; 
     ?>
<?php endwhile; endif; ?>

The goal here is to create an array of image URLS and to only display the FIRST one. On other pages they will all be used, but on this page, I want to grab ONLY the first image, hence the echo $image[0];

For some reason, it is showing all of the uploaded images, and when I print the variable $image, it returns:

Array ( [0] => http://sitename.com/agsinfo/wp-content/uploads/2012/07/1.jpg [1] => 392 [2] => 165 [3] => )

After seeing this, it would make sense to me that echo $image[0]; would work, but for some reason its not. Any ideas?

Answer 1

    <?php if(get_field('slider_images')): ?>
<?php while(the_repeater_field('slider_images')): ?>
     <?php 
     $attachment_id = get_sub_field('work_slider_image'); 
     $size = "homepage";  
     $image[] = wp_get_attachment_image_src( $attachment_id, $size ); 

     ?>
<?php endwhile;
 echo $image[0];
 endif;  ?>