ACF Dynamic Field Set

acf-dynamic-field-set.php

/**
 * Dynamically load the Custom CTA image library from RCO Settings allowable images
 */
function acf_load_image_library( $field ) {
    
  // reset CTA selector
  $field['choices'] = array();

  $images = get_field('cta_image_libary','option'); // get the images from the pre-approved list of images in RCO Settings

  if( $images ):
    foreach( $images as $image ):

      $url = ($image['sizes']['small-rco']) ? $image['sizes']['small-rco'] : $image['sizes']['medium']; // grab small size if it exists

      // vars
      $label = '<img src="' . esc_url($url) . '">';
      $value = $image['ID'];
      
      // append to CTA selector
      $field['choices'][ $value ] = $label;

    endforeach;
  endif;

  // return the field
  return $field;
    
}
add_filter('acf/load_field/name=custom_cta_image', 'acf_load_image_library');