Just figured out the solution to this myself so I share it here
$nfl_question_repeater = get_field('nl_form_questions', 'options' );
//Just change the number here to specify the first repeater row
$row_outer = $nfl_question_repeater[0];
$row_question = $row_outer['question'];
//Just change the number here to specify the nested repeater row
$row_inner = $row_question[1];
$row_inner_value = $row_inner['uses'];
If you want to search for custom fields you should use a plugin called Relevanssi (https://wordpress.org/plugins/relevanssi/).
This plugin enables the standard wp search to look for terms inside custom fields also (it basically overrides the standard wp search).
There is a setting in relevanssi that you can enable in order to make all custom fields searchable.
Great, thank you James for your help and support!
Perfect, thank you for that.
Would this also be suitable to do if I want to differ from posts that are new or updated?
Or is there a better solution for identifying if the post already exists or if it is new with acf/save_post? Because I want to send an email to the author when they create the post but not when they update it.
I send an url query that identifies if the form should update an existing post or create a new one (by sending post=79 for example). I also use some checks to identify if it is the correct author.
if(isset($_GET['post'])) {
$post_id = $_GET['post'];
}
$correct_author = true;
if(empty($post_id)) {
$post_id = 'new_post';
$submit_value = 'create';
} else {
$submit_value = 'update';
$post_author = get_post_field('post_author', $post_id);
$current_user = get_current_user_id();
if( $post_author == $current_user ) {
$correct_author = true;
} else {
$correct_author = false;
}
}
acf_form(array(
'html_after_fields' => '<input type="hidden" name="acf[' . $submit_value .']" value="true"/>',
));
