modules.php

<?php

/* Template Name: Modules */

/**
 * Modular Content 
 *
 */
function be_modular_content() {
  echo '<article>';
  
  // First section is standard content 
  echo '<div class="section"><div class="wrap">';
  genesis_do_breadcrumbs();
  genesis_entry_header_markup_open();
  genesis_do_post_title();
  genesis_entry_header_markup_close();
  genesis_do_post_content();
  echo '</div></div>';
  
  
  // Use ACF field to output additional sections
  $sections = get_post_meta( get_the_ID(), 'be_section', true );
  for( $i = 0; $i < $sections; $i++ ) {
    echo '<div class="section"><div class="wrap">';
    echo apply_filters( 'the_content', get_post_meta( get_the_ID(), 'be_section_' . $i . '_content', true ) );
    echo '</div></div>';
  }
  echo '</article>';
}

// Build the page
get_header();
be_modular_content();
get_footer();