Shortcode using ACF to store global calls to action

lm_cta_shortcode.php

<?php
/*
 * This goes in your functions file and will create a shortcode that returns a CTA created with Advanced Custom Fields
 *
 */
 
 function lm_global_cta($atts, $content) {
  $params = shortcode_atts( array(
    'id' => ''
  ), $atts );


  if ( have_rows( 'cta', 'option' ) ) :

    $cta = '';

    // loop through the rows of data
    while ( have_rows( 'cta', 'option' ) ) : the_row();

        if ( get_sub_field('unique_id') == $params['id'] ) :
         // This is where you output your unique fields.
        endif;

    endwhile;

  endif;
  return $cta;
}
add_shortcode( 'globalcta', 'lm_global_cta' );