Please take backup of your existing code and what if you try to use the following code:
add_action( 'save_post', 'ied_state_save_post', 10,3 );
function ied_state_save_post( $post_id, $post, $update ) {
// exit if not the target post type
if ( ('listing' !== $post->post_type) OR ($post->post_status == 'auto-draft') OR (empty($_POST)) ) {
return;
}
// current post ID
$post_id = $post->ID;
// target taxonomy slug
$taxonomy_slug = 'state';
// $_POST['wpcf-state'] value exists, it means that post is being added using the front-end form
if(!empty($_POST['wpcf-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
// $_POST['wpcf']['state'] value exists, it means that post is being added using the back-end post edit screen
if(!empty($_POST['wpcf']['state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-license-state']
if(!empty($_POST['wpcf-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-2nd-license-state']
if(!empty($_POST['wpcf-2nd-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-2nd-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['2nd-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['2nd-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-3rd-license-state']
if(!empty($_POST['wpcf-3rd-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-3rd-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['3rd-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['3rd-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-4th-license-state']
if(!empty($_POST['wpcf-4th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-4th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['4th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['4th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-5th-license-state']
if(!empty($_POST['wpcf-5th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-5th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['5th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['5th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-6th-license-state']
if(!empty($_POST['wpcf-6th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-6th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['6th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['6th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-7th-license-state']
if(!empty($_POST['wpcf-7th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-7th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['7th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['7th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-8th-license-state']
if(!empty($_POST['wpcf-8th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-8th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['8th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['8th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-9th-license-state']
if(!empty($_POST['wpcf-9th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-9th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['9th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['9th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
//// $_POST['wpcf-10th-license-state']
if(!empty($_POST['wpcf-10th-license-state'])) {
// get the term's name from the form's state field
$term_name = $_POST['wpcf-10th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
if(!empty($_POST['wpcf']['10th-license-state'])) {
// get the term's name from the state field
$term_name = $_POST['wpcf']['10th-license-state'];
// call the function that processes the taxonomy attachment
ied_new_state_term($post_id, $term_name, $taxonomy_slug);
}
}
// function that processes the taxonomy attachment
function ied_new_state_term($post_id, $term_name, $taxonomy_slug) {
// check if the term already exists
$term = term_exists( $term_name, $taxonomy_slug );
// if does exist
if ( $term !== 0 && $term !== null ) {
// attach it to the current post
wp_set_post_terms( $post_id, $term['term_id'], $taxonomy_slug );
}
// if doesn't exist
else
{
// first add it as a new term in the taxonomy
$inset_new_term = wp_insert_term($term_name, $taxonomy_slug);
if ( ! is_wp_error( $inset_new_term ) )
{
// and then attach this new term to the current post
$term_id = $inset_new_term['term_id'];
wp_set_post_terms( $post_id, $term_id, $taxonomy_slug );
}
}
}
