I actually solved this simply by typing the field key instead of the field name. For future reference the field key can be found using this guide: http://www.advancedcustomfields.com/resources/get_field_object/
Thank you for your help
Tony
Thank you for your reply. I’m sorry for my bad explanation and your lost time.
I have a radio button fields with city names. I’m trying to retrieve all of these values regardless of the selected one. I am able to do it with the code <?php echo implode(', ', get_field_object('example')[choices]); ?> when I insert it in the single.php page of my template. The above code doesn’t work in page.php.
When I will be able to extract all these values in an array, then I will process them one by one to check if posts with the related city name exist and if true echo a link on the page.
Thanks in advance
Tony