: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
final class NF_Database_FormsController
private $forms_data = array();
public function __construct()
public function setFormsData()
SELECT `id`, `title`, `created_at`
FROM `{$this->db->prefix}nf3_forms`
$forms_data = $this->db->get_results($forms_sql, OBJECT_K);
$public_form_keys_sql = "SELECT link.parent_id as 'form_id', link.value as 'public_link_key'
FROM `{$this->db->prefix}nf3_form_meta` as link
LEFT JOIN `{$this->db->prefix}nf3_form_meta` as allowed
ON allowed.parent_id = link.parent_id
WHERE link.key = 'public_link_key'
AND allowed.key = 'allow_public_link'
AND allowed.value = '1';";
$public_form_keys = $this->db->get_results($public_form_keys_sql, OBJECT_K);
foreach($public_form_keys as $public_form_key){
$form_id = $public_form_key->form_id;
if(!isset($forms_data[$form_id])) continue;
$forms_data[$form_id]->public_link_key = $public_form_key->public_link_key;
} catch( Exception $e ) {
// object {id => Str, title => Str, created_at => Str}
public function getFormsData()
if( empty( $this->forms_data ) ) {
$this->forms_data = $this->setFormsData();
return( array_values( $this->forms_data ) );