The get_field() function in Advanced Custom Fields (ACF) is used to retrieve the value of a custom field. If get_field() is not returning the expected value, there are a few possible reasons for this.
One common reason is that the field name or key is not specified correctly. Make sure you are using the correct field name or key when calling get_field().
Another reason could be that the field is not assigned to the correct post or page. By default, get_field() retrieves the value for the current post or page. If you are trying to retrieve the value for a different post or page, you need to pass the post ID or page ID as the second parameter of get_field().
Here’s an example of how to use get_field() correctly:
$custom_field_value = get_field('field_name');
In this example, replace 'field_name' with the actual name or key of your custom field. This will retrieve the value of the custom field for the current post or page.
If you want to retrieve the value for a specific post or page, you can pass the post ID or page ID as the second parameter:
$custom_field_value = get_field('field_name', $post_id);
Replace $post_id with the ID of the post or page you want to retrieve the custom field value from.
Remember to check the ACF documentation and make sure the field exists and is properly configured. Also, ensure that you have the ACF plugin installed and activated on your WordPress site.